General Description
The LPV521 is a single nanopower 552 nW amplifier designed for ultra long life battery applications. The operating voltage range of 1.6V to 5.5V coupled with typically 351 nA of supply current make it well suited for RFID readers and remote sensor nanopower applications. The device has input common mode voltage 0.1V over the rails, guaranteed TCVOS and voltage swing to the rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40 fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high impedance photodiode, and charge sense situations. The LPV521 is a member of the PowerWise® family and has an exceptional power-to-performance ratio.
The wide input common mode voltage range, guaranteed 1 mV VOS and 3.5 μV/°C TCVOS enables accurate and stable measurement for both high side and low side current sensing. EMI protection was designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.
The LPV521 is offered in the 5-pin SC-70 package.

Features
(For VS = 5V, Typical unless otherwise noted)
*Supply current at VCM = 0.3V 400 nA (max)
*Operating voltage range 1.6V to 5.5V
*Low TCVOS 3.5 μV/°C (max)
*VOS 1 mV (max)
*Input bias current 40 fA
*PSRR 109 dB
*CMRR 102 dB
*Open loop gain 132 dB
*Gain bandwidth product 6.2 kHz
*Slew rate 2.4 V/ms
*Input voltage noise at f = 100 Hz 255 nV/√Hz
*Temperature range −40°C to 125°C

Applications
*Wireless remote sensors
*Powerline monitoring
*Power meters
*Battery powered industrial sensors
*Micropower oxygen sensor and gas sensor
*Active RFID readers
*Zigbee based sensors for HVAC control
*Sensor network powered by energy scavenging

LPV521MG, LPV521MGE, LPV521MGX

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General Description
The LM22670 series of regulators are monolithic integrated circuits which provide all of the active functions for a stepdown (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance N-channel MOSFET. The series consists of a fixed 5V output and an adjustable version.
The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and National’s WEBENCH® design tool. National’s WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in. The switching clock frequency is provided by an internal fixed frequency oscillator which operates at 500 kHz. The switching frequency can also be adjusted with an external resistor or synchronized to an external clock up to 1MHz. It is also possible to selfsynchronize multiple regulators to share the same switching frequency. The LM22670 series also has built in thermal shutdown, current limiting and an enable control input that can power down the regulator to a low 25 μA quiescent current standby condition.

Features
*Wide input voltage range: 4.5V to 42V
*Internally compensated voltage mode control
*Stable with low ESR ceramic capacitors
*120 mΩ N-channel MOSFET TO-263 THIN package
*100 mΩ N-channel MOSFET PSOP-8 package
*Output voltage options:
-ADJ (outputs as low as 1.285V)
-5.0 (output fixed to 5V)
*±1.5% feedback reference accuracy
*Switching frequency of 500 kHz, adjustable between 200 kHz and 1 MHz
*-40°C to 125°C operating junction temperature range
*Precision enable pin
*Integrated boot diode
*Integrated soft-start
*Fully WEBENCH® enabled
*Step-down and inverting buck-boost applications

Applications
*Industrial Control
*Telecom and Datacom Systems
*Embedded Systems
*Automotive Telematics and Body Electronics
*Conversions from Standard 24V, 12V and 5V Input Rails

LM22670MR-ADJ, LM22670MRE-ADJ, LM22670MRX-ADJ, LM22670TJE-ADJ

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General Description
The ADC16V130 is a monolithic high performance CMOS analog-to-digital converter capable of converting analog input signals into 16-bit digital words at rates up to 130 Mega Samples Per Second (MSPS). This converter uses a differential, pipelined architecture with digital error correction and an onchip sample-and-hold circuit to minimize power consumption and external component count while providing excellent dynamic performance. Automatic power-up calibration enables excellent dynamic performance and reduces part-to-part variation, and the ADC16V130 could be re-calibrated at any time by asserting and then de-asserting power-down. An integrated low noise and stable voltage reference and differential reference buffer amplifier easies board level design. On-chip duty cycle stabilizer with low additive jitter allows wide duty cycle range of input clock without compromising its dynamic performance. A unique sample-and-hold stage yields a fullpower bandwidth of 1.4 GHz. The digital data is provided via full data rate LVDS outputs – making possible the 64-pin, 9mm x 9mm LLP package. The ADC16V130 operates on dual power supplies +1.8V and +3.0V with a power-down feature to reduce the power consumption to very low levels while allowing fast recovery to full operation.

Features
*Dual Supplies: 1.8V and 3.0V operation
*On chip automatic calibration during power-up
*Low power consumption
*Multi-level multi-function pins for CLK/DF and PD
*Power-down and sleep modes
*On chip precision reference and sample-and-hold circuit
*On chip low jitter duty-cycle stabilizer

Applications
*High IF Sampling Receivers
*Multi-carrier Base Station Receivers GSM/EDGE, CDMA2000, UMTS, LTE and WiMax
*Test and Measurement Equipment
*Communications Instrumentation
*Data Acquisition
*Portable Instrumentation

ADC16V130CISQ, ADC16V130EB

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General Description
The LM22676 series of regulators are monolithic integrated circuits which provide all of the active functions for a stepdown (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance N-channel MOSFET. The series consists of a fixed 5V output and an adjustable version.
The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and National’s WEBENCH® design tool. National’s WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in. The switching clock frequency is provided by an internal fixed frequency oscillator which operates at 500 kHz. The LM22676 series also has built in thermal shutdown, current limiting and an enable control input that can power down the regulator to a low 25 μA quiescent current standby condition.

Features
*Wide input voltage range: 4.5V to 42V
*Internally compensated voltage mode control
*Stable with low ESR ceramic capacitors
*120 mΩ N-channel MOSFET TO-263 THIN package
*100 mΩ N-channel MOSFET PSOP-8 package
*Output voltage options:
-ADJ (outputs as low as 1.285V)
-5.0 (output fixed to 5V)
*±1.5% feedback reference accuracy
*Switching frequency of 500 kHz
*-40°C to 125°C operating junction temperature range
*Precision enable pin
*Integrated boot diode
*Integrated soft-start
*Fully WEBENCH® enabled
*Step-down and inverting buck-boost applications

Applications
*Industrial Control
*Telecom and Datacom Systems
*Embedded Systems
*Automotive Telematics and Body Electronics
*Conversions from Standard 24V, 12V and 5V Input Rails

LM22676MR-ADJ, LM22676MRE-ADJ, LM22676MRX-ADJ, LM22676TJE-ADJ

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General Description
The LM95235 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface and TruTherm technology that can monitor the temperature of a remote diode as well as its own temperature. The LM95235 can be used to very accurately monitor the temperature of external devices such as microprocessors, graphics processors, or a diode-connected MMBT3904 transistor. For automotive applications the LM95235Q is available that is AECQ100 Grade3 compliant and is manufactured on an Automotive Grade Flow. TruTherm BJT (transistor) beta compensation technology allows the LM95235 to precisely monitor thermal diodes found in 90 nm and smaller geometry processes. LM95235 reports temperature in two different formats for +127.875°C/-128°C range and 0°C/255°C range. The LM95235 T_CRIT and OS outputs are asserted when either unmasked channel exceeds its programmed limit and can be used to shutdown the system, to turn on the system fans, or as a microcontroller interrupt function. The current status of the T_CRIT and OS pins can be read back from the status registers via the SMBus interface. All limits have a shared programmable hysteresis register.
The remote temperature channel of the LM95235 has a programmable digital filter. The LM95235 contains a diode model selection bit to select between a typical Intel® processor on a 65 nm or 90 nm process or MMBT3904, as well as an offset register for maximum flexibility and best accuracy.
The LM95235 has a three-level address pin to connect up to 3 devices to the same SMBus master, that is shared with the OS output. The LM95235 has a programmable conversion rate register and a standby mode to save power. One conversion can be triggered in standby mode by writing to the one-shot register.

Features
*Remote and Local temperature channels
*TruTherm BJT beta compensation technology
*LM95235Q is AEC-Q100 Grade 3 compliant and is manufactured on an Automotive Grade Flow
*Diode Model Selection Bit - MMBT3904 or 65/90 nm processor diodes
*Two Formats: −128°C to 127.875°C and 0°C to 255.875°C
*Digital filter for remote channel
*Programmable TCRIT and OS thresholds
*Programmable shared hysteresis register
*Diode Fault Detection
*Mask, Offset, and Status Registers
*SMBus 2.0 compatible interface, supports TIMEOUT
*Programmable conversion rate for best power consumption
*Three-level address pin
*Standby mode one-shot conversion control
*Pin-for-pin compatible with the LM86/LM89
*8-pin MSOP package

Applications
*Processor/Computer System Thermal Management (e.g. Laptops, Desktops, Workstations, Servers)
*Electronic Test Equipment and Office Electronics

LM95235CIMM, LM95235CIMMX, LM95235DIMM, LM95235DIMMX, LM95235EIMM, LM95235EIMMX, LM95235QEIMM, LM95235QEIMMX

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General Description
The LM3402/02HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 735 mA (typical) for step-down (Buck) regulators. Hysteretic control with controlled on-time coupled with an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel connected arrays of LEDs of varying number and type, LED dimming by pulse width modulation (PWM), broken/open LED protection, low-power shutdown and thermal shutdown complete the feature set.

Features
*Integrated 0.5A N-channel MOSFET
*VIN Range from 6V to 42V (LM3402)
*VIN Range from 6V to 75V (LM3402HV)
*500 mA Output Current Over Temperature
*Cycle-by-Cycle Current Limit
*No Control Loop Compensation Required
*Separate PWM Dimming and Low Power Shutdown
*Supports all-ceramic output capacitors and capacitor-less outputs
*Thermal shutdown protection
*MSOP-8, PSOP-8 Packages

Applications
*LED Driver
*Constant Current Source
*Automotive Lighting
*General Illumination
*Industrial Lighting

LM3402MM, LM3402MMX, LM3402HVMM, LM3402HVMMX, LM3402MR, LM3402MRX, LM3402HVMR, LM3402HVMRX

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General Description
The LP38855 is a high-current, fast-response regulator which can maintain output voltage regulation with an extremely low input to output voltage drop. Fabricated on a CMOS process,
the device operates from two input voltages: VBIAS provides power for the internal bias and control circuits, as well as drive for the gate of the N-MOS power transistor, while VIN supplies
power to the load. The use of an external bias rail allows the part to operate from ultra low VIN voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent
current at any output load current. The use of an NMOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of this device makes it suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The LP38855 is
available in TO-220 and TO-263 5-Lead packages.
Dropout Voltage: 130 mV (typical) at 1.5A load current.
Low Ground Pin Current: 14 mA (typical) at 1.5A load current.
Shutdown Current: 1 μA (typical) IIN(GND) when EN pin is low.
Precision Output Voltage: ±1.0% for TJ = 25°C and ±2.0% for 0°C ≤ TJ ≤ +125°C, across all line and load conditions

Features
*Standard VOUT values of 0.8V and 1.2V
*Wide VBIAS Supply operating range of 3.0V to 5.5V
*Stable with 10 μF ceramic capacitors
*Dropout voltage of 130 mV (typical) at 1.5A load current
*Precision Output Voltage across all line and load
*conditions:
 ±1.0% for TJ = 25°C
 ±2.0% for 0°C ≤ TJ ≤ +125°C
 ±3.0% for -40°C ≤ TJ ≤ +125°C
*Over-Temperature and Over-Current protection
*Available in 5 lead TO-220 and TO-263 packages
*Custom VOUT values between 0.8V and 1.2V are available
*-40°C to +125°C Operating Temperature Range

Applications
*ASIC Power Supplies In:
 Desktops, Notebooks, and Graphics Cards, Servers
 Gaming Set Top Boxes, Printers and Copiers
* Server Core and I/O Supplies
*DSP and FPGA Power Supplies
*SMPS Post-Regulator

LP38855S-0.8, LP38855SX-0.8, LP38855S-1.2, LP38855SX-1.2

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General Description
The LM133/LM333 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of −3.0A over an output voltage range of −1.2V to −32V.
These regulators are exceptionally easy to apply, requiring only 2 external resistors
to set the output voltage and 1 output capacitor for frequency compensation.
The circuit design has been optimized for excellent regulation and low thermal transients.
Further, the LM133 series features internal current limiting, thermal shutdown and safe-area compensation, making them substantially immune to failure from overloads.
The LM133/LM333 serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation.
The LM133/ LM333 are ideal complements to the LM150/LM350 adjustable positive regulators.

Features
*Output voltage adjustable from −1.2V to −32V
*3.0A output current guaranteed, −55°C to +150°C
*Line regulatio*typically 0.01%/V
*Load regulatio*typically 0.2%
*Excellent rejectio*of thermal transients
*50 ppm/°C temperature coefficient
*Temperature-independent current limit
*Internal thermal overload protection
*P+ Product Enhancement tested
*Standard 3-lead transistor package
*Output is short circuit protected

LM133
LM333

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General Description
The LM2738 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in an 8-pin LLP or 8-pin eMSOP package.
It provides all the active functions for local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.
With a minimum of external components, the LM2738 is easy to use.
The ability to drive 1.5A loads with an internal 250mΩ NMOS switch using state-of-the-art 0.5μm BiCMOS technology results in the best power density available.
Switching frequency is internally set to 550kHz (LM2738Y) or 1.6MHz (LM2738X), allowing the use of extremely small surface mount inductors and chip capacitors.
Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve.
External enable is included, featuring an ultra-low stand-by current of 400nA.
The LM2738 utilizes current-mode control and internal compensation to provide highperformance regulation over a wide range of operating conditions.
Additional features include internal soft-start circuitry to reduce in-rush current, cycle-by-cycle current limit, thermal shutdown, and output over-voltage protection.

Features
* Space Saving LLP-8 and eMSOP-8 package
* 3.0V to 20V input voltage range
* 0.8V to 18V output voltage range
* 1.5A output current
* 550kHz (LM2738Y) and 1.6MHz (LM2738X) switching frequencies
* 250mΩ NMOS switch
* 400nA shutdown current
* 0.8V, 2% internal voltage reference
* Internal soft-start
* Current-Mode, PWM operation
* Thermal shutdown

Applications
* Local Point of Load Regulation
* Core Power in HDDs
* Set-Top Boxes
* Battery Powered Devices
* USB Powered Devices
* DSL Modems

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DESCRIPTION
 The UPD16803 is a monolithic dual H bridge driver circuit which uses N-channel power MOS FETs in its driver stage.
By employing the power MOS FETs for the output stage, this driver circuit has a substantially improved saturation voltage and power consumption as compared with conventional driver circuits that use bipolar transistors.
In addition, the drive current can be adjusted by an external resistor in a power-saving mode.
The UPD16803 is therefore ideal as the driver circuit of the 2-phase excitation, bipolar-driven stepping motor for the head actuator of an FDD.

FEATURES
• Low ON resistance (sum of ON resistors of top and bottom transistors)
- RON1 = 1.5 W TYP. (VM = 5.0 V)
- RON2 = 2.0 W TYP. (VM = 12.0 V)
• Low current consumption: IDD = 0.4 mA TYP.
• Stop mode function that turns OFF all output transistors
• Compact surface mount package: 20-pin plastic SOP (300 mil)

UPD16803GS

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