Description
The SG1577A is a high-efficiency, voltage-mode, dualchannel, synchronous DC/DC PWM controller for two independent outputs. The two channels are operated out of phase. The internal reference voltage is trimmed to 0.7V±1.5%. It is connected to the error amplifier’s positive terminal for voltage feedback regulation.
The soft-start circuit ensures the output voltage can be gradually and smoothly increased from zero to its final regulated value. The soft-start pin can also be used for chip-enable function. When two soft-start pins are grounded, the chip is disabled and the total operation current can be reduced to under 0.7mA.
The fixed-frequency is programmable from 60kHz to 340kHz. The Over-Current Protection (OCP) level can be programmed by an external current sense resistor. It has two integrated sets of internal MOSFET drivers.
SG1577A is available in a 20-pin SOP package.

Features
*Integrated Two Sets of MOSFET Drivers
*Two Independent PWM Controllers
*Constant Frequency Operation: Free-running Fixed Frequency Oscillator Programmable: 61kHz to 340kHz
*Maximum Input Supply Voltage: 15V
*Programmable Output as Low as 0.7V
*Internal Error Amplifier Reference Voltage: 0.7V±1.5%
*Two Soft-Start / EN Functions
*Programmable Over-Current Protection (OCP)
*30V HIGH Voltage Pin for Bootstrap Voltage
*Output Over-Voltage Protection (OVP)
*20-Pin SOP

Applications
*CPU and GPU Vcore Power Supply
*Power Supply Requiring Two Independent Outputs

SG1577ASY

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General Description
The AP2014 controller IC is designed to provide a low cost synchronous Buck regulator for on-board DC to DC converter applications. With the migration of today’s ASIC products requiring low supply voltages such as 1.8V and lower, together with currents in excess of 3A, traditional linear regulators are simply too lossy to be used when input supply is 5V or even in some cases with 3.3V input supply. The AP2014 together with dual N-channel MOSFETs such as AF9410, provide a low cost solution for such applications. This device features an internal 200KHz oscillator (400KHz for "A" version), under-voltage lockout for both Vcc and Vc supplies, an external programmable soft-start function as well as output under-voltage detection that latches off the device when an output short is detected.

Features
*Synchronous Controller in 8-Pin Package
*Operating with single 5V or 12V supply voltage
*Internal 200KHz Oscillator (400KHz for AP2014A)
*Soft-Start Function
*Fixed Frequency Voltage Mode
*500mA Peak Output Drive Capability
*Protects the output when control FET is shorted
*SOP-8L/PDIP-8L Pb-Free package

Applications
*Graphic Card
*Hard Disk Drive
*DDR memory source sink Vtt application
*Low cost on-board DC to DC such as 5V to 3.3V, 2.5V or 1.8V

AP2014A, AP2014S, AP2014-AS, AP2014N, AP2014-AN

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DESCRIPTION
converter delivering high efficiency in a SOT23-6 package. The device has an internal NMOS switch and PMOS synchronous rectifier and has the capacity of supplying 3.3V at 100mA from a single AA cell input.
High frequency switching (up to 2MHz) minimizes the board area by allowing the use of tiny, low profile inductors and ceramic capacitors.
The KB3436 provides automatic pulse skipping at light loads, thus reducing the supply current for extended battery life. At shutdown, the KB3436 fully discharges the output to ground and draws no supply current.
The KB3436 is available in small SOT23-6 package with both fixed and adjustable output voltage versions.

FEATURES
*Up to 96% efficiency
*Low start-up voltage 0.8V
*Internal synchronous rectifier
*Up to 2MHz switching allows for tiny external components
*0.5V to 4.4V input range
*2.5V to 5.0V output range (Note 3)
*Feedback Voltage: 1.00V +/-2%
*Logic controlled shutdown (<1μA)
*Low 250μA operating supply current (measured at VOUT)
*Pulse skipping at light load for extended battery life
*Generates 3.3V at 100mA from single AA cell
*Stable with ceramic output capacitor
*Low profile 6-Leads SOT23-6 package

APPLICATIONS
*PDAs and organizers
*Digital cameras
*Wireless mice/ keyboards
*Portable medical equipment
*Cordless phones
*Wireless Headsets

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Description
The ZL2106 is an innovative power conversion and management IC that combines an integrated synchronous step-down DC-DC converter with key power management functions in a small package, resulting in a flexible and integrated solution. Zilker Labs Digital-DC™ technology enables unparalleled power management integration while delivering industry-leading performance in a tiny footprint.
The ZL2106 can provide an output voltage from 0.54 V to 5.5 V (with margin) from an input voltage between 4.5 V and 14 V. Internal low RDS(ON) synchronous power MOSFETs enable the ZL2106 to deliver continuous loads up to 6 A with high efficiency. An internal Schottky bootstrap diode reduces discrete component count. The ZL2106 also supports phase spreading to reduce system input capacitance.
Power management features such as digital softstart delay and ramp, sequencing, tracking, and margining can be configured by simple pinstrapping or through an on-chip serial port. The ZL2106 uses the PMBus™ protocol for communication with a host controller and the Digital-DC bus for interoperability between other Zilker Labs devices.

Features
Power Conversion
*Efficient synchronous buck controller
*Integrated MOSFET switches
*6 A continuous output current
*4.5 V to 14 V input range
*0.54 V to 5.5 V output range (with margin)
*±1% output voltage accuracy
*200 kHz to 1 MHz switching frequency
*Phase spreading and Fault spreading
*Snapshot™ parametric capture
*Small footprint QFN package (6 x 6 mm)
Power Management
*Digital soft start/stop
*Precision delay and ramp-up
*Power good/enable
*Voltage tracking, sequencing, and margining
*Voltage / current / temperature monitoring
*Output voltage and current protection
*I2C/SMBus interface, PMBus compatible
*Internal non-volatile memory (NVM)

Applications
*Telecom, Networking, Storage equipment
*High-density servers
*Test & Measurement equipment
*Industrial control equipment
*5V & 12V distributed power systems

ZL2106ALBNT, ZL2106ALBNT1

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Description
The IR3822A SupIRBuckTM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3822A a space-efficient solution, providing accurate power delivery for low output voltage applications.
The IR3822A operates from a single 4.5V to 14V input supply and generates an output voltage adjustable from 0.6V to 0.8*Vin at loads up to 6A.
A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3822A’s fixed 300kHz switching frequency allows the use of small external components.
The IR3822A also features important protection functions, such as Pre-Bias startup, hiccup current limit and thermal shutdown to provide the required system level security in the event of fault conditions.

Features
*Wide Input Voltage Range 2.5V to 21V
*Wide Output Voltage Range 0.6V to 12V
*Continuous 6A Load Capability
*300kHz High Frequency Operation
*Programmable Over-Current Protection
*Programmable PGood Output
*Hiccup Current Limit
*Precision Reference Voltage (0.6V)
*Programmable Soft-Start
*Pre-Bias Start-up
*Thermal Protection
*Thermally Enhanced Package
*Small Size 5mmx6mm QFN
*Pb-Free (RoHS Compliant)

Applications
*Distributed Point-of-Loads
*Server and Workstations
*Embedded Systems
*Storage Systems
*DDR Applications
*Graphics Cards
*Game Consoles
*Computing Peripheral Voltage Regulators

IR3822AMTRPBF

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General Description
The A63L06361 is a high-speed SRAM containing 36M bits of bit synchronous memory, organized as 1024K words by 36 bits.
The A63L06361 combines advanced synchronous peripheral circuitry, 2-bit burst control, input registers, output buffer and a 1M X 36 SRAM core to provide a wide range of data RAM applications.
The positive edge triggered single clock input (CLK) controls all synchronous inputs passing through the registers. Synchronous inputs include all addresses (A0 - A19), all data inputs (I/O1 - I/O36 ), active LOW chip enable ( CE ), two additional chip enables (CE2, CE2 ), burst control inputs ( ADSC , ADSP , ADV ), byte write enables (BWE , BW1 , BW2 , BW3 , BW4 ) and Global Write (GW ). Asynchronous inputs include output enable ( OE ), clock (CLK), BURST mode (MODE) and SLEEP mode (ZZ).
Burst operations can be initiated with either the address status processor ( ADSP ) or address status controller ( ADSC ) input pin. Subsequent burst sequence burst addresses can be internally generated by the A63L06361 and controlled by the burst advance ( ADV ) pin. Write cycles are internally self-timed and synchronous with the rising edge of the clock (CLK).
This feature simplifies the write interface. Individual Byte enables allow individual bytes to be written. BW1 controls I/O1 - I/O9, BW2 controls I/O10 - I/O18, BW3 controls I/O19 - I/O27, and BW4 controls I/O28 - I/O36, all on the condition that BWE is LOW. GW LOW causes all bytes to be written.

Features
*Fast access times: 6.5/7.5/8.0 ns(153/133/117 MHz)
*Single 3.3V±5% power supply
*Synchronous burst function
*Individual Byte Write control and Global Write
*Three separate chip enables allow wide range of options for CE control, address pipelining
*Selectable BURST mode
*SLEEP mode (ZZ pin) provided
*Available in 100-pin LQFP package
*Industrial operating temperature range: -45°C to +125°C for -I series

A63L06361E-6.5, A63L06361E-6.5F, A63L06361E-7.5, A63L06361E-7.5F

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DESCRIPTION
The MP2307 is a monolithic synchronous buck regulator. The device integrates 100mΩ MOSFETS that provide 3A of continuous load current over a wide operating input voltage of 4.75V to 23V. Current mode control provides fast transient response and cycle-by-cycle current limit.
An adjustable soft-start prevents inrush current at turn-on and in shutdown mode, the supply current drops below 1μA.
This device, available in an 8-pin SOIC package, provides a very compact system solution with minimal reliance on external components.

FEATURES
*3A Continuous Output Current, 4A Peak Output Current
*Wide 4.75V to 23V Operating Input Range
*Integrated 100mΩ Power MOSFET Switches
*Output Adjustable from 0.925V to 20V
*Up to 95% Efficiency
*Programmable Soft-Start
*Stable with Low ESR Ceramic Output Capacitors
*Fixed 340KHz Frequency
*Cycle-by-Cycle Over Current Protection
*Input Under Voltage Lockout
*Thermally Enhanced 8-Pin SOIC Package

APPLICATIONS
*Distributed Power Systems
*Networking Systems
*FPGA, DSP, ASIC Power Supplies
*Green Electronics/Appliances
*Notebook Computers

MP2307DN, EV2307DN-00A

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Description
The IR3640M is a synchronous Buck PWM controller designed for performance demanding DC/DC applications. The single loop voltage mode architecture simplifies design while delivery precise output voltage regulation and fast transient response. Because of its wide input and output voltage range it can be used in a large variety of point of load applications within a system and across different markets.
The part is designed to drive a pair of N-Channel MOSFETs from 250kHz to 1.5Mhz switching frequency giving designers the flexibility to optimize the solution for best efficiency or smallest footprint. The output voltage can be precisely regulated from as low as 0.7V within a tolerance of +/-1% over temperature, line and load variations.
The device also integrates a diversity of features including; programmable soft start, pre-bias start up, voltage tracking, external synchronization, enable input and Power Good output. Fault protection features include thermal shutdown, over voltage and over current shutdown and under voltage lock out.

Features
*4.5V to 5.5V external supply
*Wide Input voltage from 1.5V to 24V
*Output voltage range: 0.7V to 0.9*Vin
*Programmable switching frequency up to 1.5MHz
*Programmable Soft-start
*Hiccup mode over current protection using Rds(on) sensing
*Programmable OCP
*Reference voltage 0.7V (+/-1%, 0oC <Tj<125oC)
*Enhanced Pre-bias start up
*Output voltage tracking
*Integrated MOSFET drivers and bootstrap diode
*Operating temp: -40oC <Tj<125oC
*External synchronization
*Power Good output
*Thermal shut down
*Over voltage protection
*Enable Input with voltage monitoring capability
*Pb-Free & Halogen-Free (RoHS Compliant)
*20 -Lead MLPQ package (3mmx4mm)

Applications
*Point of Load Power Architectures
*Server & Netcom Applications
*Game Consoles
*General DC/DC Converters

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DESCRIPTION
The HY57V121620 is a 512-Mbit CMOS Synchronous DRAM, ideally suited for the main memory applications which require large memory density and high bandwidth. HY57V121620 is organized as 4banks of 8,388,608x16.
HY57V121620 is offering fully synchronous operation referenced to a positive edge of the clock. All inputs and outputs are synchronized with the rising edge of the clock input. The data paths are internally pipelined to achieve very high bandwidth. All input and output voltage levels are compatible with LVTTL.
Programmable options include the length of pipeline (Read latency of 2 or 3), the number of consecutive read or write cycles initiated by a single control command (Burst length of 1,2,4,8 or full page), and the burst count sequence(sequential or interleave). A burst of read or write cycles in progress can be terminated by a burst terminate command or can be interrupted and replaced by a new burst read or write command on any cycle. (This pipelined design is not restricted by a `2N` rule.)

FEATURES
*Single 3.3±0.3V power supply
*All device pins are compatible with LVTTL interface
*JEDEC standard 400mil 54pin TSOP-II with 0.8mm of pin pitch
*All inputs and outputs referenced to positive edge of system clock
*Data mask function by UDQM, LDQM
*Internal four banks operation
*Auto refresh and self refresh
*8192 refresh cycles / 64ms
*Programmable Burst Length and Burst Type
-1, 2, 4, 8 or Full page for Sequential Burst
-1, 2, 4 or 8 for Interleave Burst
*Programmable CAS Latency ; 2, 3 Clocks

HY57V121620T, HY57V121620LT, HY57V121620T-6, HY57V121620LT-6

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DESCRIPTION
The MB39A107 is a DC/DC converter IC suitable for down-conversion, using pulse-width modulation (PWM) charging and enabling output voltage to be set to any desired level from 1 cell to 4 cells.
The MB39A107 adopts output for Nch MOS drive of synchronous rectification type.
The MB39A107 can be used to monitor the current in an AC adapter or battery, as it contains a current amplifier that can set an offset voltage.
It can also be used for applications such as setting the charging voltages for 2 batteries.
The MB39A107 provides a broad power supply voltage range and low standby current as well as high efficiency, making it ideal for use as a built-in charging device in products such as notebook PC.

FEATURES
*Built-in low-current control circuits in two systems (supporting dynamically controlled charging)
*The charge current value can be analog controlled (+INE1 and +INE2 terminal)
*Built-in synchronous rectification system output for Nch MOS FET
*Built-in charge pump for driving high-side Nch MOS, providing 100% on-duty support
*Built-in AC adapter detection function
*Output voltage setting accuracy : 4.2 V ± 0.74 % (Ta = - 10 °C to + 85 °C)
*Built-in high accuracy current detection amplifier : ± 5 % (input voltage difference at 100 mV), ±15 % (input voltage difference at 20 mV)
*Output voltage setting using external resistor : 1 cell to 4 cells
*Oscillation frequency range : 100 kHz to 1 MHz
*In standby mode, leave output voltage setting resistor open to prevent inefficient current loss.
*Built-in standby current function : 0 mA (Typ)
*Built-in soft-start function independent of loads

MB39A107PFT

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