Datasheet > KB3301MR

KB3301MR

更新时间： 2024-11-30 03:47:23

品牌	Logo	应用领域
KINGBOR		转换器
页数	文件大小	规格书
5页	97K
描述
Step-up DC/DC converter

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中文翻译

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数据手册

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KB3301MR 数据手册

KB3301

Step-up DC/DC converter

Features

90% Efficiency

General Description

The KB3301 is a small, high efficiency, and low voltage

step-up DC/DC converter with an Adaptive Current Mode

PWM control loop, includes an error amplifier, ramp

generator, comparator, switch pass element and driver

in which providing a stable and high efficient operation

over a wide range of load currents. It operates in stable

waveforms without external compensation.

High Supply Capability to Deliver 5.0V 500mA

with input 3.6V-4.2V

14µA Quiescent (switch-off) Supply Current

500KHz Fixed Switching Frequency

Zero Shutdown Mode Supply Current

Providing Flexibility for Using Internal and

External Power Switches

The low start-up input voltage below 0.8V makes KB3301

suitable for 1 to 4 battery cells applications of providing

up to 300mA output current. The 500KHz high switching

rate minimized the size of external components. Besides,

the 14µA low quiescent current together with high effic-

iency maintains long battery lifetime.

1.0V Low Start-up Input Voltage

Small SOT-26 & SOT89-5 Package

䂓 Ordering Information

Package

The KB3301 is available in small package SOT-26 and

Item

Shipping

SOT89-5

KB3301MR

KB3301PR

SOT-26

3000pcs/Reel&Tape

SOT-89-5

Applications

䂓 Package Information

LCD Panel

DSC

MP3

Wireless Equipment

Portable Instrument

PDA

SOT89-5

SOT-26

Typical Application Circuit

䂓 Pin Configurations

Vin

3.3~10uH

100uF

1N5819

SOT-26 SOT-89-5 Pin NamePin Function

Chip enable

1uF

Vout

3.3V/5V

1.6M/100K

EXT Output

GND Ground

VDD

KB3301

GND

EXT

VDD Input

FB Feedback input 1.25V

Switching

100uF

980k/33K

Note:Vin=3.6~4.2V, Vout=5.0V 500mA ( USB host application )

P1 / 5

12 3 4 5

中文翻译

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