Datasheet > LP6453ATF

LP6453ATF

更新时间： 2024-11-11 17:00:47

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
19页	1394K
描述
COT,Internal Soft Start,OCP,SCP,OTP

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LP6453ATF 数据手册

LP6453X

18V/3A Synchronous BUCK Switching Converter

Features

General Description

⚫ Wide input voltage range: 4.2V – 18V

⚫ Output voltage range: V_ref– 7V

⚫ High efficiency operation

The LP6453X is a high efficiency synchronous buck

converter supporting up to 3A output current and low heat.

The LP6453X employs an adaptive constant-on-time (COT)

control scheme to achieve fast load transient response and

without external compensation. The external components

are minimized, requiring only one inductor, two resistors,

and two capacitors.

- Integrated an 33-mΩ LS-MOSFET and an 55-mΩ HS-

MOSFET

- 92% efficiency at 3A load from 12V to 5V conversion

⚫ Constant-on time (COT) control with fast transient

The LP6453X supports both aluminum polymer capacitors

and ceramic capacitors without extra compensation

components.

response.

⚫ ±1% Vref accuracy

⚫ Typical 1.2-MHz switching frequency

⚫ Startup from Pre-biased output voltage

⚫ 1.0ms typical soft-start time

The LP6453/LP6453T/LP6453A integrates PFM (Pulse

Frequency Modulation) operation, which helps maintain

the system efficiency at light load. The LP6453AF

integrates FPWM (Forced PWM) operation, which helps

achieve very small output ripple over all load range. The

LP6453X also integrates multiple protection functions, i.e.,

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

protections

⚫ 1.6mm Χ 2.9mm SOT23-6 package and 1.6mm Χ

over-current

protection

(OCP),

over-temperature

1.6mm SOT563 package

protection (OTP), under-voltage lockout (UVLO), and short

circuit protection (SCP).

⚫ RoHS Compliant and 100% Lead (Pb) Free

The LP6453X is available in a small 6-pin 1.6mmΧ2.9mm

SOT23-6 package or 1.6mmΧ1.6mm SOT563 package.

Applications

⚫

Industrial PC

Network/digital video recorder (NVR/DVR)

TV and TV box

Order Information

LP6453X

12V Industrial bus applications

F:Green/Pb Free

Package Type

B6 : SOT23-6

G6 : SOT563

Typical Application Circuit

9~15V

VIN

BST

C₁

₁C₂

C₃

L₁

5V/3A

LP6453X

C₆

R₃C₅

C₄

R₂

GND

R₅

R₄

Version: 10/5/2022

www.lowpowersemi.com

email: marketing@lowpowersemi.com

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与LP6453ATF相关器件

型号	品牌	获取价格	描述	数据表
LP6453F	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6453T	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6454	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6460	LOWPOWER	获取价格	Internal Soft Start,OCP,SCP,OTP
LP6461	LOWPOWER	获取价格	Internal Soft Start,OCP,SCP,OTP
LP6462H	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6462H*	LOWPOWER	获取价格	SOT23-6
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LP6470	LOWPOWER	获取价格	Internal Soft Start,OCP,SCP,OTP
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