SP6652EU-L/TR Datasheet

IC型號(hào)：
SP6652EU-L/TR
PDF描述：
1A, High Efficiency, Fixed 1.4 MHz Current Mode PWM Buck Reg...
文件大小：
1049.33KB
PDF頁數(shù)：
16頁
芯片廠家：
SIPEX

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sp6652

1A, High Efficiency, Fixed 1.4 MHz

Current Mode PWM Buck Regulator

Features

鈻?1A

Output Current

鈻?1.4MHz

Constant Frequency Operation

鈻?97%

Efficiency Possible

鈻?

0.5碌A(chǔ) (Max.) Shutdown Current

鈻?

Adjustable Output Voltage

鈻?No

External FETs or Schottky Diode Required

鈻?/div>

Uses Small Value Inductors and Ceramic

Output Capacitors

鈻?/div>

Low Dropout Operation: 100% Duty Cycle

鈻?Soft

Start and Thermal Shutdown Protection

鈻?/div>

Easy Frequency Synchonization

鈻?Lead

Free, RoHS Compliant package: l

Small (3mm X 3mm) 10 Pin DFN or MSOP

GND

COMP

VIN

SYNC

MODE

SP6652

10 Pin DFN

applications

鈻?/div>

Mobile Phones

鈻?/div>

PDAs

鈻?/div>

DSCs

鈻?/div>

MP3 Players

鈻?/div>

USB Devices

鈻?

Point of Use Power

Description

The SP6652 is a high efficiency, synchronous buck regulator ideal for portable applications

using one Li-Ion cell, with up to 1A of output current. The 1.4MHz switching frequency and

PWM control loop are optimized for a small value inductor and ceramic output capacitor,

for space constrained portable designs. In addition, the input voltage range of 2.7V to 5.5V;

excellent transient response, output accuracy, and ability to transition into 100% duty cycle

operation -- further extending useful battery life -- make the SP6652 a superior choice for

a wide range of portable power applications. A logic level shutdown control, external clock

synchronization, and forced-PWM or automatic control inputs are provided. Other features

include soft-start, over current protection and 140潞C over-temperature shutdown.

typical application circuit

OUT

3.3V at 1A

340k鈩?/div>

10碌F

4k鈩?/div>

100k鈩?/div>

10nF

ENABLE

SHUTDOWN

4.7碌H

GND

VIN

3.6V - 5.5V

10鈩?/div>

10碌F

COMP

SP6652

VIN

SYNC

1碌F

MODE

May25-07 RevH

SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator

漏 2007 Sipex Corporation

制造商
Exar
產(chǎn)品種類
開關(guān)變換器、穩(wěn)壓器與控制器
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SP6652EU-L/TR Datasheet

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