Datasheet > SP3406

SP3406

更新时间： 2024-11-06 12:48:51

品牌	Logo	应用领域
擎力 - SYNC-POWER		转换器
页数	文件大小	规格书
6页	154K
描述
600mA Buck Converter

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SP3406 数据手册

SP3406

600mA Buck Converter

DESCRIPTION

SP3406 is a high efficiency monolithic

APPLICATIONS

Digital Camera

PDA

synchronous buck regulator using a constant

frequency, current mode architecture. The device

is available in an adjustable version and fixed

output voltages, such as 1.5V,1.8V,etc. Supply

current with no load is 30uA and drops to <1uA in

shutdown. The 2.5 to 6.5V input voltage range

makes the SP3406 ideally suitable for single

Li-Ion, two to four AA battery-powered

Hand Held Communication Equipment

Wireless and DSL Modems

Portable instrument

Microprocessor and DSP Core Supplies

MID or UPMC

applications. In low dropout operation mode, the

duty cycle can reach to 100%, extending battery

life in portable systems. PWM pulse skipping mode

operation provides very low output ripple voltage

for noise sensitive applications. Switching

frequency is internally set at 1.5MHz, allowing the

use of small surface mount inductors and

capacitors. The internal synchronous switch

increases efficiency and eliminates the need for an

external Schottky diode. Low output voltages are

easily supported with the 0.6V feedback reference

voltage. The SP 3406 is available in a small

SOT-23-5 package.

FEATURES

PIN CONFIGURATION ( SOT-23-5L)

High Efficiency: Up to 96%;

1.5MHz Constant Switching Frequency;

600mA Output Current at Vin=3V;

Integrated Main Switch and Synchronous

Rectifier, No Schottky Diode Required;

2.5 to 6.5V input voltage;

Output Voltage as Low as 0.6V;

100% Duty Cycle in Dropout;

Quiescent Current: 30uA(input<4.2V);

Slope Compensated Current Mode Control for

Excellent Line and Load Transient Response;

Short Circuit Protection and Thermal Fault

Protection;

PART MARKING

<1uA Shutdown Current;

Soft Start;

2012/11/15 V. 1

Page 1

12 3 4 5 6

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