The EP1551 is a small, high efficiency, five-channel, power-supply for digital still and video cameras. It consists of:
*Step-up DC-DC converter with on-chip power MOSFETs for 3.3V main system supply with up to 95% efficiency. It accepts inputs from 0.7V to 5.5V and regulates a resistor-adjustable output from 2.7V to 5.5V.
*Step-down main DC-DC converter with on-chip power MOSFETs for 1.5V DSP core supply with up to 92% efficiency. It can operate from the Step-up main system supply providing buck-boost capability with up to 90% compound efficiency, or it can run directly from battery if buck-boost operation is not needed.
*PWM controller with external FET for Step-up DC-DC converter for 5V motor actuator
*PWM controller with external FET for 15V LCD supply
*PWM controller with external FET and transformer for –7.5V and +15V CCD Bias
All DC-DC channels operate at one fixed frequency settable from 100KHz to 1MHz to optimize size, cost and efficiency. Other features include soft-start, power-OK outputs, and overload protection. The EP1551 is available in apace saving QFN-32 5 x 5 mm packages. An evaluation kit is also available to expedite design.

*Up to 95% efficiency Step-up and up to 92% efficient Step-down converters
*Combine Step-up and Step-down for up to 87% efficiency buck-boost operations
*Minimum 0.7V input voltage
*2μA shutdown mode
*Internal soft start control
*Overload protection
*Compact QFN-32 5 x 5 mm package

*Digital still camera
*Digital video camera
*Portable DVD Player
*Car navigation
TAG Power, Supply

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The Gamewell-FCI Power Supply 9 (GFPS-9) panel provides two (2) Class A, Style Z, or four (4) Class B, Style Y notification appliance circuits. Each circuit is rated at 3 amperes, with a total capacity of 9 amperes per panel. These circuits may be programmed to activate by groups or various combinations by connection to one (1) or two (2) existing Class A or B notification appliance circuits with operating voltages ranging from 9 to 30 VDC. Either noncoded or coded operation is possible. In addition, the GFPS-9 can provide a temporal pattern output from a noncoded input.
A unique feature allows for programmable synchronizedoutputs for strobes by three (3) different major manufacturers, System Sensor, Faraday, or Gentex.
The GFPS-9 contains its own battery charger capable of maintaining batteries of up to 33 AH. The cabinet provides space for a set of 7 A/H batteries. It is supervised for ground fault, over-current, open circuits and low battery conditions. These conditions light the appropriate trouble
LED and automatically open the notification appliance circuit used for activation, transmitting a trouble signal to the main fire alarm control panel. The ground fault detection circuit may be disabled.
The unit contains a set of dry, Form “C” trouble actuated auxiliary contacts, rated 2.5 amp. @ 24 VDC (resistive). Transfer of these contacts for AC power failure is programmable and can be delayed for a period of six (6) hours. This delay feature may be disabled.
A power limited, non-resettable auxiliary power output up to three (3) amperes is also available. The panel can be programmed via DIP switch to disconnect this output from the
batteries 30 seconds after AC power failure, in order to avoid running down the batteries from current devices such as door holders, etc.

*UL Listed as a fire alarm accessory for use with any Gamewell-FCI or other UL Listed fire alarm controls.
*Two (2) Class A (Style Z), or four (4) Class B (Style Y) notification appliance circuits.
*Programmable temporal pattern output including ANSI S3.41.
*High current 9 amp. total output.
*Integral strobe synchronization feature for strobes by three (3) manufacturers.
*Integral ground fault detection.
*Form “C” trouble contacts with delayed AC failure indication.

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General Description
The AAT4672 SmartSwitch™ is a member of AnalogicTech’s Application Specific Power Management IC™ family.
This device is a dual input, single output power supply selector switch, designed to operate from USB ports, AC adapter inputs, batteries, or any other power supply with an input voltage up to 6V.
The AAT4672 connects the supply on the MAIN pin to the OUT pin through a very low on-resistance power MOSFET when the device is enabled, the MAIN pin voltage is higher than the under voltage lockout (UVLO) threshold, and MAIN pin voltage is greater than the AUX pin voltage plus 200mV.
The AUX pin connects to the OUT pin only when the MAIN pin voltage drops 0.2V below the AUX pin voltage and the AUX pin voltage is greater than the UVLO threshold.
If both input supplies (MAIN/AUX) are below the UVLO threshold, then the OUT pin floats.
The two internal power switches are current limited and the thresholds can be programmed through resistors on the IMAIN and IAUX pins respectively.
A power level selection pin, PWRSEL, is provided to toggle the AUX current limit between 100% and 20% of the current limit setting programmed by the resistor on the IAUX pin.
This is particularly useful for USB applications where the power supply can be powered by either a 500mA or a 100mA USB port.
The AAT4672 is available in a thermally enhanced, space-saving, Pb-free 12-pin TSOPJW package and is specified for operation over the -40°C to +85°C temperature range.

* Input Voltage Supply Range: 2.5V to 6V
* High Level of Integration:
- Reverse Blocking Diode
- Current Sensing
- Programmable Current Limiting
- Automatic Power Supply Switching
* Break-Before-Make Switch-Over
- Minimum Output Voltage Drop During Change-Over
* Shutdown Current < 1μA
* Thermal Protection
* TSOPJW-12 Package

* Bluetooth™ Headsets
* Cell Phones
* Digital Still Cameras
* MP3 Players
* Personal Data Assistants (PDAs)


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· HIGH BANDWIDTH: 230MHz (G = +1), 100MHz (G = +2)
· FLEXIBLE SUPPLY RANGE: ±1.5V to ±5.5V Dual Supply +3V to +11V Single Supply


The OPA2830 is a dual, low-power, single-supply, wideband, voltage-feedback amplifier designed to operate on a single +3V or +5V supply. Operation on ±5V or +10V supplies is also supported. The input range extends below ground and to within 1.8V of the positive supply. Using complementary common-emitter outputs provides an output swing to within 25mV of ground and +VS while driving 150W.
High output drive current (75mA) and low differential gain and phase errors also make it ideal for single-supply consumer video products.
Low distortion operation is ensured by the high gain bandwidth product (100MHz) and slew rate (500V/μs), making the OPA2830 an ideal input buffer stage to 3V and 5V CMOS Analog-to-Digital Converters (ADCs). Unlike earlier low-power, single-supply amplifiers, distortion performance improves as the signal swing is decreased. A low 9.2nV/ÖHz input voltage noise supports wide dynamic range operation.
The OPA2830 is available in an industry-standard SO-8 package. The OPA2830 is also available in a small MSOP-8 package. For fixed-gain and line driver applications, consider the OPA2832.

TAG Supply

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* Round varistor element, leaded
* Coating: phenolic resin
* Terminals: tinned copper wire

* New automotive series for 42-V supply systems
* This series complies with the electrical requirements for the new 42-V board net as specified in draft standard ISO/TC22 WD42V-1E
* Stable protection level, minimum leakage current
* High resistance to cyclic temperature stress: 1000 cycles
* High operating temperature of up to 125˚C

* Reliable protection from inductive voltage spikes, e. g. in wiper and air vent motors, power windows, rear mirror, power seat and other servo drives

* All types available on tape upon request


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 The PGA112 and PGA113 (binary/scope gains) offer two analog inputs, a three-pin SPI interface, and software shutdown in an MSOP-10 package.
The PGA116 and PGA117 (binary/scope fains) offer 10 analog inputs, a four-pin SPI interface with daisy-chain capability, and hardware and software shutdown in a TSSOP-20 package.
All versions provide internal calibration channels for system-level calibration.
The channels are tied to GND, 0.9VCAL, 0.1VCAL, and VREF, respectively.
VCAL, an external voltage connected to Channel 0, is used as the system calibration reference.
Binary gains are: 1, 2, 4, 8, 16, 32, 64, and 128; scope gains are: 1, 2, 5,10, 20, 50, 100, and 200.

* Rail-to-Rail Input/Output
* Offset: 25mV (typ), 100mV (max)
* Zerø Drift: 0.35mV/°C (typ), 1.2mV/°C (max)
* Low Noise: 12nV/√Hz
* Input Offset Current: ±5nA max (+25°C)
* Gain Error: 0.1% max (G ≤ 32), 0.3% max (G > 32)
* Binary Gains: 1, 2, 4, 8, 16, 32, 64, 128 (PGA112, PGA116)
* Scope Gains: 1, 2, 5, 10, 20, 50, 100, 200 (PGA113, PGA117)
* Gain Switching Time: 200ns
* Two Channel MUX: PGA112, PGA113
  10 Channel MUX: PGA116, PGA117
* Four Internal Calibration Channels
* Amplifier Optimized for Driving CDAC ADCs
* Output Swing: 50mV to Supply Rails
* AVDD and DVDD for Mixed Voltage Systems
* IQ = 1.1mA (typ)
* Software/Hardware Shutdown: IQ ≤ 4mA (typ)
* Temperature Range: –40°C to +125°C
* SPI™ Interface (10MHz) with Daisy-Chain Capability

* Remote e-Meter Reading
* Automatic Gain Control
* Portable Data Acquisition
* PC-Based Signal Acquisition Systems
* Test and Measurement
* Programmable Logic Controllers
* Battery-Powered Instruments
* Handheld Test Equipment


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 The DG469/470 are high voltage SPDT switches, with a typical on resistance of 3.6 Ω and typical flatness of 0.4 Ω.
The DG469 and DG470 are identical, except the DG470 provides an enable input.
When the enable input is activated, both sides of the switch are in a high impedance mode (Off), maintaining a "Safe State" at power up.
This function can also be used as a quick "disconnect" in the event of a fault condition.
For audio switching, the enable pin provides a mute function.
These are high voltage switches that are fully specified with dual supplies at ± 4.5 V and ± 15 V and a single supply of 12 V over an operating temperature range from - 40 °C to + 125 °C.
Fast switching speeds coupled with high signal bandwidth makes these parts suitable for video switching applications.
All digital inputs have 0.8 V and 2.4 V logic thresholds ensuring low voltage TTL/CMOS compatibility.
Each switch conducts equally well in both directions when on and can handle an input signal range that extends to the supply voltage rails.
They exhibit breakbefore- make switching action to prevent momentary shorting when switching between channels.
The DG469 and DG470 are offered in a MSOP 8 and SOIC 8 package.

* Low on resistance (3.6 Ω typical)
* On resistance flatness (0.4 Ω typical)
* 44 V supply maximum rating
* ± 15 V analog signal range
* Fully specified at supply voltages of ± 4.5 V, 12 V and ± 15 V
* TTL/CMOS compatible
* Break before make switching guaranteed
* Total harmonic distortion 0.0145 %

* Audio and video signal switching
* Precision automatic test equipment
* Precision data acquisition
* Relay replacement
* Communications systems
* Automotive applications
* Sample and hold systems
* Power routing applications
* Telecom signal switching
* Medical equipment
* Portable and battery power systems


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The Intersil ISL84467 device is a low ON-resistance, low voltage, bidirectional, Quad SPDT (Dual DPDT) analog switch designed to operate from a single +1.65V to +4.5V supply.
Targeted applications include battery powered equipment that benefit from low rON (0.39Ω) and fast switching speeds (tON = 33ns, tOFF = 16ns).
The digital logic input is 1.8V logic-compatible when using a single +3V supply.
With a supply voltage of 4.2V and logic high voltage of 2.85V at both logic inputs, the part draws only 12μA max of ICC current.
Cell phones, for example, often face ASIC functionality limitations.
The number of analog input or GPIO pins may be limited and digital geometries are not well suited to analog switch performance.
This part may be used to “mux-in” additional functionality while reducing ASIC design risk.
The ISL84467 is offered in small form factor package, alleviating board space limitations.
The ISL84467 consists of four SPDT switches.
It is configured as a dual double-pole/double-throw (DPDT) device with two logic control inputs that control two SPDT switches each.
The configuration can be used as a dual differential 2-to-1 multiplexer/demultiplexer.

• ON-Resistance (rON)
- V+ = +4.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.39Ω
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.45Ω
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.65Ω
• rON Matching Between Channels . . . . . . . . . . . . . . 0.05Ω
• rON Flatness Across Signal Range . . . . . . . . . . . . . 0.05Ω
• Single Supply Operation . . . . . . . . . . . . . . +1.65V to +4.5V
• Low Power Consumption (PD) . . . . . . . . . . . . . . <0.68μW
• Fast Switching Action (V+ = +4.3V)
- tON  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33ns
- tOFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16ns
• Break-Before-Make
• 1.8V Logic Compatible (+3V supply)
• Low ICC Current when VinH is not at the V+ Rail
• Available in 16 Ld 3x3 TQFN
• ESD HBM Rating
- COM Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9kV
- All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV
• Pb-Free Plus Anneal Available (RoHS Compliant)

• Battery-Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
• Portable Test and Measurement
• Medical Equipment
• Audio and Video Switching

Related Literature
• Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)”
• Application Note AN557 “Recommended Test Procedures for Analog Switches”


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General Description
The AAT4674/4674-1 are members of Analogic - Tech’s Application Specific Power Management SmartSwitch™ family.
These devices are dual input single output power supply selector switches designed to operate from batteries, or any other power supply with an input voltage up to 6V.
The AAT4674/4674-1 connects the supply voltage on IN1 to OUT, or IN2 to OUT, through a very low RDS(ON) power MOSFET that minimizes voltage drops and power dissipation. The enable (EN) and select (SEL) pin voltages control the operational state of the internal power MOSFET switches.
Once enabled, the SEL pin will switch between the IN1 and IN2 inputs. If both input voltages are below the UVLO, then the AAT4674 output floats. In the case of the AAT4674-1, if one of the input voltages is above the UVLO threshold then that input voltage that is above the UVLO threshold is passed through to the output.
The two power switches are current limited and the current limit thresholds can be programmed through the resistors on IIN1 and IIN2 pins respectively.
The AAT4674/4674-1 are available in thermally enhanced, space-saving Pb-free 12-pin TSOPJW packages. The AAT4674/4674-1 are specified for operation over the -40°C to +85°C temperature range.

• Input Voltage Supply Range: 2.5V to 6V
• High Level of Integration:
- Reverse Blocking Diode
- Current Sensing
- Programmable Current Limit
- Single Control Pin Switching
• Break-Before-Make Switch-Over
- Minimum Output Voltage Drop During
• Shutdown Current < 1μA
• Thermal Protection
• TSOPJW-12 Package

• Bluetooth™ Headsets
• Cell Phones
• Digital Still Cameras
• MP3 Players
• Personal Data Assistants (PDAs)
• Set Top Boxes


TAG Supply, Switch

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San Jose, California – November 27, 2007 – Fairchild Semiconductor’s (NYSE: FCS) FAN31xx and FAN32xx high-speed low-side gate drivers offer maximum flexibility for power supply designs, providing a wide selection of features and packaging to create compact, highly efficient and reliable power supplies. Available in either the industry’s smallest MLP packaging or industry-standard SOT and SOIC packaging, this broad portfolio of gate drivers expands the options available in the market today. With the additional flexibility offered by input-threshold and package choices, two inputs per channel, plus a higher voltage range, short propagation delays, and delay matching between channels, power-supply designs can be further optimized in terms of efficiency, reliability, power density and cost.

Advantages of the FAN31xx/32xx Series:

  • Industry’s smallest packages (2x2 and 3x3 mm MLP)
  • Choice of TTL or CMOS input thresholds for all devices for best circuit compatibility
  • Short and well-controlled time delays for 1MHz+ switching, paralleling drives, and optimizing drive timing to maximize efficiency.
  • Rugged and high reliability operation with higher maximum operating voltage of 18V, reverse current capability of at least 500mA and HBM ESD rating of 4kV or higher.
The series of high-speed low-side gate drivers consist of the FAN3100 single 2A gate drivers, and the FAN32xx family of dual 2A and 4A gate drivers. These products are specialized amplifiers that drive the gate of a switching power MOSFET or IGBT to quickly turn it on or off according to the input signal.  The dual drivers feature matched internal propagation delays between the two channels for applications such as synchronous rectifiers with critical timing needs. This matched internal propagation delay also enables a designer to connect the two channels in parallel, doubling the current capability for driving a single MOSFET.

These additions to our gate driver portfolio are part of a comprehensive suite of power solutions from Fairchild Semiconductor for high-efficiency, low-standby power AC-DC switch-mode power supplies and high-performance isolated DC-DC power converters.

The entire family of 32 new parts is covered by the following three datasheets:

  Single 2A:
  Dual 2A:
  Dual 4A:

These low-side gate drivers utilize a lead-free (Pb-free) finish and have been characterized for moisture sensitivity in accordance with the Pb-free reflow requirements of the joint IPC/JEDEC standard J-STD-020. All of Fairchild's products are designed to meet the requirements of the European Union's Directive on the restriction of the use of certain substances (RoHS).

Price: The pricing starts at $0.49 for quantities of 1,000.

Availability: All currently available parts are listed at where samples may also be ordered.

Delivery: 8 weeks ARO

Contact Information:
To contact Fairchild Semiconductor about this product, please go to:

For information on other products, design tools and sales contacts, please visit:

Note to Editor: For a datasheet in PDF format, please go to:

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