Datasheet > MAX17221

MAX17221

更新时间： 2024-11-20 14:57:27

品牌	Logo	应用领域
亚德诺 - ADI		升压转换器
页数	文件大小	规格书
22页	1026K
描述
400mV至5.5V输入、nanoPower同步升压转换器，带真关断

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中文翻译

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MAX17221 数据手册

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400mV to 5.5V Input, nanoPower Synchronous

Boost Converters with True Shutdown

MAX17220–MAX17225

General Description

Benefits and Features

The MAX17220–MAX17225 is a family of ultra-low qui-

escent current boost (step-up) DC-DC converters with a

225mA/0.5A/1A peak inductor current limit and True Shut-

down™. True Shutdown disconnects the output from the

input with no forward or reverse current. The output volt-

age is selectable using a single standard 1% resistor. The

225mA (MAX17220/MAX17221), 500mA (MAX17222/

MAX17223), and 1A (MAX17224/MAX17225) peak induc-

tor current limits allow flexibility when choosing inductors.

The MAX17220/MAX17222/MAX17224 versions have

post-startup enable transient protection (ETP), allowing

the output to remain regulated for input voltages down

to 400mV, depending on load current. The MAX17220–

MAX17225 offer ultra-low quiescent current, small total

solution size, and high efficiency throughout the entire

load range. The MAX17220–MAX17225 are ideal for bat-

tery applications where long battery life is a must.

● 300nA Quiescent Supply Current into OUT

● True Shutdown Mode

• 0.5nA Shutdown Current

• Output Disconnects from Input

• No Reverse Current with V

0V to 5V

OUT

● 95% Peak Efficiency

● 400mV to 5.5V Input Range

● 0.88V Minimum Startup Voltage

● 1.8V to 5V Output Voltage Range

• 100mV/Step

• Single 1% Resistor-Selectable Output

● 225mA, 500mA, and 1A Peak Inductor Current Limit

• MAX17220/MAX17221: 225mA I

• MAX17222/MAX17223: 500mA I

LIM

• MAX17224/MAX17225: 1A I

LIM

● MAX17220/MAX17222/MAX17224 Enable Transient

Protection (ETP)

● 2mm x 2mm, 6-Pin μDFN

● 0.88mm x 1.4mm, 6-Bump WLP (2 x 3, 0.4mm Pitch)

Applications

● Optical Heart-Rate Monitoring (OHRM) LED Drivers

● Supercapacitor Backup for Real-Time Clock (RTC)/

Alarm Buzzers

Typical Operating Circuit

● Primary-Cell Portable Systems

● Tiny, Low-Power IoT Sensors

L1 2.2µH

400mV TO 5.5V

● Secondary-Cell Portable Systems

● Wearable Devices

● Battery-Powered Medical Equipment

● Low-Power Wireless Communication Products

OUT

10µF

OUT

GND

MAX1722X

STARTUP

0.88 (TYP)

SEL

Arm and Cortex are registered trademarks of Arm Limited.

Bluetooth is a registered trademark of Bluetooth SIG, Inc.

True Shutdown is a trademark of Maxim Integrated Products, Inc.

19-8753; Rev 8; 10/21

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...22

中文翻译

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与MAX17221相关器件

型号	品牌	获取价格	描述	数据表
MAX17221ELT+	MAXIM	获取价格	Switching Regulator,
MAX17221ENT+	MAXIM	获取价格	Switching Regulator,
MAX17222	MAXIM	获取价格	400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
MAX17222	ADI	获取价格	400mV至5.5V输入、nanoPower同步升压转换器，带真关断
MAX17222ELT	MAXIM	获取价格	400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
MAX17222ELT+	MAXIM	获取价格	Switching Regulator,
MAX17222ENT	MAXIM	获取价格	400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
MAX17222ENT+	MAXIM	获取价格	Switching Regulator,
MAX17222EVKIT	MAXIM	获取价格	400mV to 5.5V Input Range
MAX17223	MAXIM	获取价格	400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown

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