Datasheet > LP6450

LP6450

更新时间： 2024-09-18 17:02:07

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
18页	2040K
描述
18V/2A Synchronous BUCK Switching Converter

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LP6450 数据手册

LP6450X

18V/2A Synchronous BUCK Switching Converter

Features

General Description

⚫ Wide input voltage range: 4.2V – 18V

⚫ Output voltage range: V_ref– 7V

⚫ High efficiency operation

The LP6450X is a synchronous buck converter supporting

up to 2A output current. The LP6450X 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 75-mΩ LS-MOSFET and an 110-mΩ

HS-MOSFET

- 90% efficiency at 2A load from 12V to 5V conversion

⚫ Automatic PFM mode at light load

⚫ ±1% Vref accuracy

The LP6450X supports both aluminum polymer capacitors

and ceramic capacitors without extra compensation

components.

⚫ Typical 1.2-MHz switching frequency

⚫ COT control scheme with fast load transient response

⚫ Hiccup protection

The LP6450X integrates PFM (Pulse Frequency

Modulation) operation, which helps maintain the system

efficiency at light load. The LP6450X also integrates

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

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

lockout (UVLO), and short circuit protection (SCP).

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

protections

⚫ 1.25ms typical soft-start time

⚫ 1.6mm Χ 2.9mm SOT23-6 package

⚫ RoHS Compliant and 100% Lead (Pb) Free

⚫

The LP6450X is available in a small 6-pin 1.6mmΧ2.9mm

SOT23-6 package.

Order Information

LP6450

Applications

⚫

Industrial PC

Network/digital video recorder (NVR/DVR)

TV and TV box

F:Green/Pb Free

12V Industrial bus applications

Package Type

B6 : SOT23-6

Vref option

None: 0.6Vref

T:0.768Vref

M:0.8Vref

Typical Application Circuit

9~15V

VIN

BST

C₁

₁C₂

C₃

L₁

5V/2A

LP6450X

C₆

R₃C₅

C₄

R₂

GND

R₅

R₄

Version: 3/5/2023

www.lowpowersemi.com

email: marketing@lowpowersemi.com

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与LP6450相关器件

型号	品牌	获取价格	描述	数据表
LP6451	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6452A	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6453	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6453AT	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
LP6453ATF	LOWPOWER	获取价格	COT,Internal Soft Start,OCP,SCP,OTP
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