Datasheet > LP54334

LP54334

更新时间： 2024-04-09 19:00:48

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
19页	1946K
描述
COT,Internal Soft Start,OCP,SCP,OTP

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LP54334 数据手册

LP54334

32V/3A Synchronous BUCK Switching Converter

Features

General Description

⚫ Wide input voltage range: 4.5V – 32V

⚫ Output voltage range: V_ref– 13.2V

⚫ High efficiency operation

The LP54334 is a synchronous buck converter supporting

up to 3A output current. The LP54334 employs an adaptive

constant-on-time (COT) control scheme to achieve fast

load transient response. The external components are

minimized, requiring only one inductor, two resistors, and

two capacitors.

- Integrated an 85-mΩ LS-MOSFET and an 130-mΩ

HS-MOSFET

- 88% efficiency at 3A load from 12V to 5V conversion

⚫ Automatic PFM mode to achieve high efficiency at light

load

The LP54334 supports both aluminum polymer capacitors

and ceramic capacitors without extra compensation

components.

⚫ ±1% Vref accuracy

The LP54334 integrates PFM (Pulse Frequency

Modulation) operation, which helps maintain the system

efficiency at light load. The LP54334 also integrates

multiple protection functions, i.e., over-current protection

(OCP), over-temperature protection (OTP), under-voltage

lockout (UVLO), output over-voltage protection (OVP),and

short circuit protection (SCP).

⚫ Typical 500-kHz switching frequency

⚫ COT control scheme with fast load transient response

⚫ Hiccup protection

⚫ Integrated UVLO, OVP, OCP, SCP, and OTP

protections

⚫ ESOP-8 package

The LP54334 is available in a ESOP-8 package.

⚫ RoHS Compliant and 100% Lead (Pb) Free

Order Information

Applications

⚫

Industrial PC

Network/digital video recorder (NVR/DVR)

TV and TV box

12V and 24V Industrial bus applications

Typical Application Circuit

6~30V

VIN

BST

C₁

₁C₂

C₃

L₁

5V/3A

LP54334

C₆

R₃C₅

C₄

R₂

GND

R₅

R₄

Version: 01/03/2024

www.lowpowersemi.com

email: marketing@lowpowersemi.com

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