Datasheet > ST1S15J18R

ST1S15J18R

更新时间： 2024-11-24 01:19:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
27页	1428K
描述
Short-circuit and thermal protection

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ST1S15J18R 数据手册

ST1S15

500 mA, 6 MHz synchronous step-down converter

Datasheet - production data

Description

The ST1S15 is a high efficiency miniaturized

step-down converter able to provide 500 mA

output current from an input voltage from 2.3 V to

5.5 V. This converter is specifically designed for

applications where high efficiency and small

application area are the key factors. Thanks to

6 MHz switching frequency, the ST1S15 can use

470 nH nominal values for the inductor and

4.7 µF for the output capacitor providing, at the

Features



85% typical efficiency

500 mA output current capability

45 µA typical quiescent current

PFM or PWM operation for best efficiency

over whole load range

same time, very good performance in terms of

load and line transients. A PFM mode can be

selected for high efficiency under light load

conditions or PWM mode for tight regulation and

best dynamic performance. Short-circuit and

thermal protection are also included.



Ultra-fast load and line transient

Short-circuit and thermal protection

Small external components

Auto or forced PWM selection with

dedicated pin

Table 1: Device summary

Output

voltage (V)

Order code

Package



Available in Flip Chip 6 package

ST1S15J18R

1.82

Flip Chip 6

Applications



DSP and multimedia processor core supply

Cell phones

PDAs

February 2015

DocID023280 Rev 4

1/27

www.st.com

This is information on a product in full production.

12 3 4 5 6 7...27

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