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ST1S12G18R Datasheet

  • ST1S12G18R

  • Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed ...

  • 20頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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ST1S12xx
Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed or
adjustable step-down switching regulator in TSOT23-5L
Features
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Step-down current mode PWM (1.7 MHz) DC-
DC converter
3% DC output voltage tolerance
Synchronous rectification
Fixed output voltage 1.2 V, 1.8 V, and ADJ
(available on request 1.5 V, 2.5 V and 3.3 V)
Enable function
Internal soft start
Typical efficiency: > 90%
0.7 A output current capability
Not switching quiescent current: max 600 碌A(chǔ)
over temperature range
R
DSON
typ. 250 m惟 and 400 m惟
Uses tiny capacitors and inductors
Operative junction temp. -40擄C to 125擄C
Available in TSOT23-5L package
required. Moreover, a low output ripple is
guaranteed by the current mode PWM topology
and by the use of low ESR SMD ceramic
capacitors. The device is thermally protected and
the current is limited to prevent damage due to
accidental short-circuit. The ST1S12Gxx is
available in the TSOT23-5L package.
TSOT23-5L
Description
The ST1S12Gxx is a step down DC-DC converter
optimized for powering low-voltage digital cores in
HDD applications and, generally, to replace the
high current linear solution when the power
dissipation may cause high heating of the
application environment. It provides up to 0.7 A
over an input voltage range of 2.5 V to 5.5 V. A
high switching frequency (1.7 MHz) allows the
use of tiny surface-mount components. In addition
to the resistor divider to set the output voltage
value, only an inductor and two capacitors are
Table 1.
Device summary
Part numbers
ST1S12XX
ST1S12XX12
ST1S12XX18
1. Available on request.
Order codes
ST1S12GR
ST1S12G12R
ST1S12G18R
(1)
Package
TSOT23-5L
TSOT23-5L
TSOT23-5L
February 2008
Rev 2
1/20
www.st.com
20

ST1S12G18R 產(chǎn)品屬性

  • ST1S12XX18 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）

  • 固定

  • 1

  • 1.8V

  • 2.5 V ~ 5.5 V

  • 電流模式

  • 1.7MHz

  • 700mA

  • 是

  • -40°C ~ 85°C

  • 表面貼裝

  • SOT-23-5 細(xì)型，TSOT-23-5

  • Digi-Reel®

  • TSOT-23-5

  • 497-8220-ND - BOARD EVAL BASED ON ST1S12497-8219-ND - BOARD EVAL BASED ON ST1S12

  • 497-6831-6

ST1S12G18R相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN D...
    STMICROELECTRONICS
  • 英文版
    1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN D...
    STMICROELECTRON...
  • 英文版
    Synchronous rectification with inhibit, 1.5A, 1.5 MHz fixed ...
    STMICROELECTRONICS
  • 英文版
    2A, 1.5 MHz PWM step-down switching regulator with synchrono...
    STMICROELECTRONICS
  • 英文版
    3 A, 900 kHz, monolithic synchronous step-down regulator
    STMICROELECTRONICS
  • 英文版
    1.5A, 1.5 MHz Adjustable, with inhibit function Step-down sw...
    STMICROELECTRONICS
  • 英文版
    Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed...
    STMICROELECTRONICS
  • 英文版
    1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN D...
    STMICROELECTRONICS
  • 英文版
    1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN D...
    STMICROELECTRON...
  • 英文版
    1.5A, 1.5 MHz adjustable, step-down switching regulator in D...
    STMICROELECTRONICS
  • 英文版
    Synchronous rectification with inhibit, 1.5A, 1.5 MHz fixed ...
    STMICROELECTRONICS
  • 英文版
    Synchronous rectification with inhibit, 1.5A, 1.5 MHz fixed ...
    STMICROELECTRONICS
  • 英文版
    Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed...
    STMICROELECTRONICS
  • 英文版
    2A, 1.5 MHz PWM step-down switching regulator with synchrono...
    STMICROELECTRONICS
  • 英文版
    Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed ...
    STMICROELECTRONICS
  • 英文版
    Buck Switching Regulator IC Positive Adjustable 0.6V 1 Outpu...
  • 英文版
    Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed ...
    STMICROELECTRONICS
  • 英文版
    1.5A, 1.5 MHz adjustable, step-down switching regulator in D...
    STMICROELECTRONICS
  • 英文版
    1.5 A, 1.5 MHz adjustable, step-down switching regulator
    STMICROELECTRONICS
  • 英文版
    暫無描述
    STMICROELECTRONICS

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