Datasheet > SP6128A_05

SP6128A_05

更新时间： 2024-09-16 04:03:23

品牌	Logo	应用领域
西伯斯 - SIPEX		转换器控制器
页数	文件大小	规格书
10页	125K
描述
Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters

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SP6128A_05 数据手册

SP6128A

Low Voltage, Synchronous Step Down PWM Controller

Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters

■ Optimized for Single Supply, 3V - 5.5V Applications

BST

■ High Efficiency: Greater Than 95% Possible

■ Discontinuous Startup for Precharged Output

■ Accurate Fixed 300kHz Frequency Operation

■ Fast Transient Response

12 SWN

SP6128A

14 pin TSSOP

PGND

GND

COMP

ISET

■ Internal Soft Start Circuit

■ Accurate 0.8V Reference Allows Low Output

Voltages

Now Available in Lead Free Packaging

■ Resistor Programmable Output Voltage

■ Resistor Programmable Overcurrent Threshold

APPLICATIONS

■ DSP

■ Microprocessor Core

■ I/O & Logic

■ Industrial Control

■ Distributed Power

■ Low Voltage Power

■ Loss-less Current Limit with High Side R_DS(ON)

Sensing

■ Hiccup Mode Current Limit Protection

■ Dual N-Channel MOSFET Synchronous Driver

■ Quiescent Current: 500µA, 30µA in Shutdown

■ 14 pin TSSOP

DESCRIPTION

The SP6128A is a fixed frequency, voltage mode, synchronous PWM controller designed to

work from a single 5V or 3.3V input supply, providing excellent AC and DC regulation for high

efficiency power conversion. Requiring only few external components, the SP6128A pack-

aged in an 14-pin TSSOP, is especially suited for low voltage applications where cost, small

size and high efficiency are critical. The operating frequency is internally set to 300kHz,

allowing small inductor values and minimizing PC board space. The SP6128A drives two

N-channelpowerMOSFETs forimprovedefficiencyandincludesanaccurate0.8Vreference

for low output voltage applications.

TYPICAL APPLICATION CIRCUIT

3V to 5.5V

10µF

MBR0530

FDS6690A

1µF

BST

SP6128A

PV_CC

V_CC

1.0µH

2.5V/10A

SWN

I_SET

PGND

GND

10µF

C10

10µF

C11

470µF

2.2µF

V_FB

STPS2L25U

FDS6690A

COMP

1.7k

C12

4.7nF

68pF

800

R2 7.87k C2 4.7n

Rev. 08/19/05

SP6128A Low Voltage, Synchronous Step Down PWM Controller

12 3 4 5 6 7...10

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与SP6128A_05相关器件

型号	品牌	获取价格	描述	数据表
SP6128AB	SIPEX	获取价格	Non-Isolated DC-DC SIP Modules:3.0Vdc-5.5Vdc In, 0.9Vdc-3.3Vdc out, 10A
SP6128ACY	SIPEX	获取价格	Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC
SP6128ACY/TR	SIPEX	获取价格	Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC
SP6128ACY-L	SIPEX	获取价格	Switching Controller, Voltage-mode, 2A, 330kHz Switching Freq-Max, PDSO14, LEAD FREE, PLAS
SP6128AE3	MICROSEMI	获取价格	Trans Voltage Suppressor Diode, 500W, 62.2V V(RWM), Bidirectional, 1 Element, Silicon, HER
SP6128AEY	SIPEX	获取价格	Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC
SP6128AEY/TR	SIPEX	获取价格	Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC
SP6128AEY-L	SIPEX	获取价格	Switching Controller, Voltage-mode, 2A, 330kHz Switching Freq-Max, PDSO14, LEAD FREE, PLAS
SP6128AEY-L/TR	SIPEX	获取价格	Switching Controller, Voltage-mode, 2A, 330kHz Switching Freq-Max, PDSO14, LEAD FREE, PLAS
SP6128AHY	SIPEX	获取价格	Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC

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