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IR3637SPBF

Part Number	IR3637SPBF
Manufacturer	International Rectifier
Description	1% ACCURATE SYNCHRONOUS PWM CONTROLLER
Published	Jun 17, 2006
Detailed Description	www.DataSheet4U.com Data Sheet No. PD94713 IR3637SPBF 1% ACCURATE SYNCHRONOUS PWM CONTROLLER FEATURES 0.8V Reference V...
Datasheet	IR3637SPBF PDF File

Overview

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PD94713 IR3637SPBF 1% ACCURATE SYNCHRONOUS PWM CONTROLLER FEATURES 0.
8V Reference Voltage Operates with a single 5V Supply Voltage Internal 400kHz Oscillator Soft-Start Function Fixed Frequency Voltage Mode Short Circuit Protection DESCRIPTION The IR3637 controller IC is designed to provide a simple synchronous Buck regulator for on-board DC to DC applications 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 IR3637 operates at a fixed internal 400kHz switching 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 L1 Vout Q2 C6 SS/SD C4 IR3637 LDrv C5 R1 m Comp Fb Gnd R2 R3 4U .
co eet Figure 1 - Typical application of IR3637.
Sh ORDERING INFORMATION PKG DESIG S S PACKAGE PIN PARTS PARTS T&R DESCRIPTION COUNT PER TUBE PER REEL Oriantation IR3637SPBF 8 95 -----Fig A IR3637STRPBF 8 ------2500 w.
D ata Rev.
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DataSheet4U.
com IR3637SPBF ABSOLUTE MAXIMUM RATINGS Vcc Supply Voltage .
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Vc Supply Voltage Storage Temperature Range .
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Operating Junction Temperature Range .
ESD Classification .
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Moisture Sensitivity Level 16V 25V -65°C To 150°C 0°C To 125°C HMB Class 2 (2KV) JEDEC Standard JEDEC Level 1 @ 260°C Caution: Stresses above those listed in “Absolute Maximum Rating” may cause permanen...

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IR3637SPBF 1% ACCURATE SYNCHRONOUS PWM CONTROLLER - International Rectifier

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