Datasheet > MIC24053

MIC24053

更新时间： 2024-11-08 12:25:59

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
30页	1406K
描述
12V, 9A High-Efficiency Buck Regulator

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MIC24053 数据手册

MIC24053

12V, 9A High-Efficiency Buck Regulator

SuperSwitcher II

General Description

Features

• Hyper Speed Control architecture enables

- High Delta V operation (V_IN= 19V and V_OUT= 0.8V)

- Small output capacitance

The Micrel MIC24053 is a constant-frequency, synchronous

buck regulator featuring a unique adaptive on-time control

architecture. The MIC24053 operates over an input supply

range of 4.5V to 19V and provides a regulated output of up to

9A of output current. The output voltage is adjustable down to

0.8V with a guaranteed accuracy of ±1%, and the device

operates at a switching frequency of 600kHz.

• 4.5V to 19V voltage input

• 9A output current capability, up to 95% efficiency

• Adjustable output from 0.8V to 5.5V

• ±1% feedback accuracy

• Any Capacitor stable-zero-to-high ESR

• 600kHz switching frequency

Micrel’s Hyper Speed Control architecture allows for ultra-

fast transient response while reducing the output capacitance

and also makes (High V_IN)/(Low V_OUT) operation possible.

This adaptive t_ONripple control architecture combines the

advantages of fixed-frequency operation and fast transient

response in a single device.

• No external compensation

• Power Good (PG) output

• Foldback current-limit and “hiccup mode” short-circuit

The MIC24053 offers a full suite of features to ensure

protection of the IC during fault conditions. These include

undervoltage lockout to ensure proper operation under

power-sag conditions, internal soft-start to reduce inrush

current, foldback current limit, “hiccup mode” short-circuit

protection, and thermal shutdown. An open-drain Power

Good (PG) pin is provided.

protection

• Supports safe startup into a pre-biased load

• –40°C to +125°C junction temperature range

• Available in 28-pin 5mm × 6mm QFN package

Applications

The 9A Hyper Light Load^®part, MIC24054, is also available

on Micrel’s web site.

• Servers, workstations

• Routers, switches, and telecom equipment

• Base stations

All support documentation is available on Micrel’s web site

at: www.micrel.com.

___________________________________________________________________________________________________________

Typical Application

Efficiency (VIN = 12V)

vs. Output Current

100

5.0V

3.3V

2.5V

1.8V

1.5V

1.2V

1.0V

0.9V

0.8V

VIN = 12V

10 12

OUTPUT CURRENT (A)

Hyper Speed Control, SuperSwitcher II, and Any Capacitor are trademarks of Micrel, Inc.

Hyper Light Load is a registered trademark of Micrel, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-110712-A

November 2012

12 3 4 5 6 7...30

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与MIC24053相关器件

型号	品牌	获取价格	描述	数据表
MIC24053YJL	MICREL	获取价格	12V, 9A High-Efficiency Buck Regulator
MIC24053YJL-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC24054	MICREL	获取价格	12V, 9A High-Efficiency Buck Regulator
MIC24054	MICROCHIP	获取价格	The MIC24054 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive
MIC24054YJL	MICREL	获取价格	12V, 9A High-Efficiency Buck Regulator
MIC24054YJL-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC24055	MICREL	获取价格	12V, 12A High-Efficiency Buck Regulator
MIC24055	MICROCHIP	获取价格	The MIC24055 is a constant-frequency, synchronous buck regulator featuring a unique adapti
MIC24055YJL	MICREL	获取价格	12V, 12A High-Efficiency Buck Regulator
MIC24055YJL-TR	MICROCHIP	获取价格	SWITCHING REGULATOR

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