1638 查看數據表（PDF） - STANSON TECHNOLOGY

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1638

Step-Up DC/DC Converter High Efficiency PFM

STANSON TECHNOLOGY 

Step-Up DC/DC Converter

High Efficiency PFM

ST1638

DESCRIPTION

The ST1638 is a high efficiency PFM step-up DC/DC converter for application using

battery powered devices. Only three external components are required to construct a low ripple,

high efficiency converter. ST1638 can start up from 0.9V input voltage with 1mA load.

The space saving SOT-89 and SOT-23 packages make ST1638 an ideal choice for spce

conscious applications.

PIN CONFIGURATION

SOT-23-3L

SOT-89

VOUT

GND SW

GND VOUT SW

APPLICATIONS

Battery Powered Devices

Camera

PDA

Hand Held Communication Equipment

Camcoder

Power Source for Applications which

Require Higher Voltage than Batteries

can Provide

PART MARKING

SOT-23-3L

SOP-89

638YA

Y：Year

A：Day Code

S1638

YW

Y：Year

A：Day Code

FEATURES

Larger than 85% Efficiency

Low Startup Voltage, 0.9V at 1mA

Low Ripple and Low Noise

Low Quiescent Current

Minimum Number of External

Components

SOT-89 and SOT-23 Small Package

STANSON TECHNOLOGY

120 Bentley Square, Mountain View, Ca 94040 USA

TEL: (650) 9389294 FAX: (650) 9389295

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