Datasheet > MIC261203

MIC261203

更新时间： 2024-11-11 14:55:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
38页	2760K
描述
The MIC261203 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time

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MIC261203 数据手册

MIC261203

28V, 12A HyperLight Load^®Synchronous

DC/DC Buck Regulator

Features

General Description

• HyperLight Load^®Efficiency: Up to 80% at 10 mA

• HyperLight Load^®Architecture Enables

- High Delta V Operation (V_IN= 28V and

The MIC261203 is a constant-frequency, synchronous

DC/DC buck regulator featuring adaptive on-time

control architecture. The MIC261203 operates over a

supply range of 4.5V to 28V. It has an internal linear

regulator that provides a regulated 5V to power the

internal control circuitry. MIC261203 operates at a

constant 600 kHz switching frequency in continuous

conduction mode and can be used to provide up to 12A

of output current. The output voltage is adjustable

down to 0.8V.

Microchip’s Hyper Light Load^®architecture provides

the same high-efficiency and ultra-fast transient

response as the Hyper Speed Control^®architecture

under medium to heavy loads, but also maintains high

efficiency under light load conditions by transitioning to

variable frequency, discontinuous mode operation.

V_OUT= 0.8V)

- Small Output Capacitance

• Input Voltage Range: 4.5V to 28V

• Output Current Up to 12A

• Up to 95% Efficiency

• Adjustable Output Voltage from 0.8V to 5.5V

• ±1% Feedback Accuracy

• Any Capacitor™ Stable: Zero ESR to High ESR

• 600 kHz Switching Frequency

• Power Good (PG) Output

• Foldback Current Limit and “Hiccup Mode”

Short-Circuit Protection

The MIC261203 offers a full suite of features to protect

the IC during fault conditions. These include

undervoltage lockout to ensure proper operation under

power-sag conditions, thermal shutdown, internal soft

start to reduce the inrush current, foldback current-limit,

and “hiccup” mode short-circuit protection. The

MIC261203 includes a Power Good (PG) output to

allow simple sequencing.

• Supports Safe Startup into a Pre-Biased Load

• –40°C to +125°C Junction Temperature Range

• 28-Lead 5 mm x 6 mm VQFN Package

Applications

• Distributed Power Systems

• Communications/Networking Infrastructure

• Printers, Scanners, Graphic Cards, and Video

Cards

Package Type

MIC261203

28-Lead 5 mm x 6 mm VQFN (JL)

(Top View)

 2022 Microchip Technology Inc. and its subsidiaries

DS20006661A-page 1

12 3 4 5 6 7...38

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与MIC261203相关器件

型号	品牌	获取价格	描述	数据表
MIC261203YJL	MICREL	获取价格	28V, 12A Hyper Light Load? Synchronous DC/DC Buck Regulator
MIC261203YJL-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC261203Z	MICROCHIP	获取价格	The MIC261203-ZA is a constant-frequency, synchronous buck regulator featuring a unique ad
MIC261203ZA	MICREL	获取价格	28V, 12A Hyper Speed Control Synchronous DC/DC Buck Regulator
MIC261203-ZAYJL	MICREL	获取价格	28V, 12A Hyper Speed Control Synchronous DC/DC Buck Regulator
MIC261203-ZAYJL-TR	MICROCHIP	获取价格	IC REG BUCK ADJ 12A SYNC 28MLF
MIC261203-ZYJL-TR	MICROCHIP	获取价格	Switching Regulator, 750kHz Switching Freq-Max
MIC2619	MICREL	获取价格	1.2MHz PWM Boost Converter with OVP
MIC2619	MIC	获取价格	1.2MHz PWM Boost Converter with OVP
MIC2619	MICROCHIP	获取价格	The MIC2619 is a 1.2MHz pulse width modulated (PWM) step-up switching regulator that is

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