Datasheet > RT4823M

RT4823M

更新时间： 2024-04-09 18:59:02

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
22页	733K
描述
Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency

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RT4823M 数据手册

RT4823M

Wide Input and Ultra-Low Quiescent Current Boost Converter

with High Efficiency

Features

General Description

⚫ Ultra-Low Operating Quiescent Current

⚫ Quickly Start-Up Time (< 430sec)

⚫ 3 Few External Components : 1H Inductor, 0402

Case Size Input and 0603 Case Size Output Case

Size Capacitors

The RT4823M allows systems to take advantage of

new battery chemistries that can supply significant

energy when the battery voltage is lower than the

required voltage for system power ICs. By combining

built-in power transistors, synchronous rectification,

and low supply current; this IC provides a compact

solution for systems using advanced Li-Ion battery

chemistries.

⚫ Input Voltage Range : 1.8V to 5.5V

⚫ Support V > V

Operation

OUT

⚫ Default Boost Output Voltage Setting :

= 5V

OUT

The RT4823M is a boost regulator designed to provide

a minimum output voltage from a single-cell Li-Ion

battery, even when the battery voltage is below system

minimum. In boost mode, output voltage regulation is

guaranteed to a maximum load current of 1500mA.

Quiescent current in shutdown mode is less than 1A,

which maximizes battery life. The regulator transitions

smoothly between bypass and normal boost mode. The

device can be forced into bypass mode to reduce

quiescent current.

⚫ Maximum Continuous Load Current : 1.5A at

> 3V Boosting V to 5V

OUT

⚫ Up to 93% Efficiency

⚫ EN(H), FPWM(H) : Forced PWM Mode

⚫ EN(H) : Boost Mode

⚫ EN(L) : Shutdown Mode

⚫ Internal Synchronous Rectifier

⚫ Over-Current Protection

⚫ Cycle-by-Cycle Current Limit

⚫ Over-Voltage Protection

The RT4823M is available in the WL-CSP-9B 1.3x1.2

(BSC) package.

⚫ Short-Circuit Protection

⚫ Over-Temperature Protection

⚫ Small WL-CSP-9B 1.3x1.2 (BSC) Package

Applications

⚫ NFC Device Power Supply

⚫ USB Charging Ports

⚫ PC Accessory Application (Keyboard, Mouse...etc.)

⚫ TWS (True Wireless Stereo) Hall Sensor

⚫ Gaming Device Sensor

Simplified Application Circuit

RT4823M

VOUT

OUT

VIN

FPWM

GND

is a registered trademark of Richtek Technology Corporation.

DS4823M-01 December 2022

www.richtek.com

12 3 4 5 6 7...22

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