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IR3637ASTRPBF Datasheet

  • IR3637ASTRPBF

  • 1% ACCURATE SYNCHRONOUS PWM CONTROLLER

  • 19頁(yè)

  • IRF

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Data Sheet No. 94715
IR3637ASPbF
1% ACCURATE SYNCHRONOUS PWM CONTROLLER
FEATURES
0.8V Reference Voltage
Operates with a single 5V Supply
Internal 600KHz Oscillator
Soft-Start Function
Fixed Frequency Voltage Mode
Short Circuit Protection
DESCRIPTION
The IR3637A controller IC is designed to provide a simple
synchronous Buck regulator for on-board DC to DC ap-
plications in a small 8-pin SOIC. The output voltage can
be precisely regulated using the internal 0.8V reference
voltage for low voltage applications.
The IR3637A operates at a fixed internal 600KHz switch-
ing frequency to reduce the component size.
The device features under-voltage lockout for both input
supplies, an external programmable soft-start function
as well as output under-voltage detection that latches
off the device when an output short is detected.
APPLICATIONS
Computer Peripheral Voltage Regulator
Memory Power supplies
Graphics Card
Low cost on-board DC to DC
TYPICAL APPLICATION
12V
C3
5V
C2
C1
Vc
Vcc
HDrv
Q1
D1
C4
SS/SD
LDrv
L1
Q2
C6
Vout
IR3637A
C5
R1
Comp
Gnd
Fb
R2
R3
Figure 1 - Typical application of IR3637A.
ORDERING INFORMATION
PKG
DESIG
S
S
PACKAGE
PIN
PARTS
PARTS
T&R
DESCRIPTION COUNT PER TUBE PER REEL
Oriantation
IR3637ASPbF
8
95
------
Fig A
IR3637ASTRPbF
8
-------
2500
www.irf.com
1

IR3637ASTRPBF 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 1

  • 660kHz

  • 76%

  • 4.5 V ~ 5.5 V

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 0°C ~ 125°C

  • 8-SOIC(0.154",3.90mm 寬)

  • 帶卷 (TR)

  • IRPP3637-12A-ND - KIT REF DES 12A 1PH SYNC BUCKIRDC3637-ND - BOARD EVAL SYNC BUCK REGULATOR

  • IR3637ASTRPBF-ND

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