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ST1S10PUR Datasheet

  • ST1S10PUR

  • 3 A, 900 kHz, monolithic synchronous step-down regulator

  • 26頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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ST1S10
3 A, 900 kHz, monolithic synchronous
step-down regulator
Features
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Step-down current mode PWM regulator
Output voltage adjustable from 0.8 V
Input voltage from 2.5 V up to 18 V
2% DC output voltage tolerance
Synchronous rectification
Inhibit function
Synchronizable switching frequency from 400
kHz up to 1.2 MHz
Internal soft start
Dynamic short circuit protection
Typical efficiency: 90%
3 A output current capability
Stand-by supply current: max 6 碌A(chǔ) over
temperature range
Operative junction temp: from -25擄C to 125擄C
DFN8 (4x4mm)
PowerSO-8
Description
The ST1S10 is a high efficiency step-down PWM
current mode switching regulator capable of
providing up to 3 A of output current. The device
operates with an input supply range from 2.5 V to
18 V and provides an adjustable output voltage
from 0.8 V (V
FB
) to 0.85*V
IN_SW
[V
OUT
=
V
FB
*(1+R1/R2)]. It operates either at a 900 kHz
fixed frequency or can be synchronized to an
external clock (from 400 kHz to 1.2 MHz). The
high switching frequency allows the use of tiny
SMD external components, while the integrated
synchronous rectifier eliminates the need for a
Schottky diode. The ST1S10 provides excellent
transient response, and is fully protected against
thermal overheating, switching over-current and
output short circuit.
The ST1S10 is the ideal choice for point-of-load
regulators or LDO pre-regulation.
Applications
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Consumer
鈥?STB, DVD, DVD recorders, TV, VCR, car
audio, LCD monitors
Networking
鈥?XDSL, modems, DC-DC modules
Computer
鈥?Optical storage, HD drivers, printers,
audio/graphic cards
Industrial and security
鈥?Battery chargers, DC-DC converters, PLD,
PLA, FPGA, LED drivers
Device summary
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Table 1.
Package
Part number
DFN8 (4x4 mm)
ST1S10
ST1S10PUR
PowerSO-8
ST1S10PHR
October 2007
Rev. 3
1/26
www.st.com
26

ST1S10PUR 產(chǎn)品屬性

  • ST1S10 View All Specifications

  • 1

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器

  • -

  • 降壓（降壓）

  • 可調(diào)式

  • 1

  • 0.8 V ~ 15.3 V

  • 2.5 V ~ 18 V

  • 電流模式

  • 900kHz

  • 3A

  • 是

  • -25°C ~ 125°C

  • 表面貼裝

  • 8-VDFN 裸露焊盤

  • Digi-Reel®

  • 8-DFN（4x4）

  • 497-8407-ND - BOARD EVAL STP04CM05/ST1S10497-8216-ND - BOARD EVAL BASED ON ST1S10497-8229-ND - BOARD EVAL BASED ON ST1S10

  • 497-6313-6

ST1S10PUR相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
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