SC411 Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller

Semtech Corporation

Description

Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller POWER MANAGEMENT .
The SC411 is a constant on-time synchronous buck PWM controller in a space-saving MLPQ package intended for use in notebook computers and other batter.

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Datasheet Specifications

Part number: SC411
Manufacturer: Semtech Corporation
File Size: 528.64 KB
Datasheet: SC411_SemtechCorporation.pdf
Description: Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller

Features

* include high efﬁciency and a fast dynamic response with no minimum on-time. The excellent transient response means that SC411 based solutions will require less output capacitance than competing ﬁxed frequency converters. www. DataSheet4U. com SC411 Features Constant on-time for fast dynamic response

Applications

* Notebook Computers CPU/IO Supplies Handheld Terminals and PDAs LCD Monitors Network Power Supplies Typical Application Circuit VBAT 5VSUS 5VSUS VBAT R1 RTON1 D1 C1 0.1uF R2 15 14 10R U1 16 EN/PSV TON BST NC 13 Q1 DH LX 12 11 10 9 R5 C2 10uF VOUT C3 R4 R3 1 2 3 4 VOUT VCCA L1 VOUT C

SC411 Distributors

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Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller Semtech Corporation

Semtech Corporation SC411-like datasheet