Datasheet > MAX17222

MAX17222

更新时间： 2024-11-24 00:48:27

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
23页	920K
描述
400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown

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MAX17222 数据手册

EVALUATION KIT AVAILABLE

MAX17220‒MAX17225

400mV to 5.5V Input, nanoPower Synchronous

Boost Converter with True Shutdown

General Description

Beneﬁts and Features

● 300nA Quiescent Supply Current Into OUT

The MAX17220–MAX17225 is a family of ultra-low

quiescent current boost (step-up) DC-DC converters

with a 225mA/0.5A/1A peak inductor current limit and

True Shutdown™. True Shutdown disconnects the output

from the input with no forward or reverse current. The

output voltage is selectable using a single standard 1%

resistor. The 225mA (MAX17220), 500mA (MAX17222/

MAX17223), and 1A (MAX17224/MAX17225) peak inductor

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 battery

applications where long battery life is a must.

● 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: 225mA I

LIM

• MAX17222/MAX17223: 500mA I

• MAX17224/MAX17225: 1A I

LIM

● MAX17220/MAX17222/MAX17224 Enable Transient

Applications

Protection (ETP)

● Optical Heart-Rate Monitoring (OHRM) LED Drivers

● Supercapacitor Backup for RTC/Alarm Buzzers

● Primary-Cell Portable Systems

● 2mm x 2mm 6-Pin μDFN

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

● Tiny, Low-Power IoT Sensors

Typical Operating Circuit

● Secondary-Cell Portable Systems

● Wearable Devices

L1 2.2µH

400mV TO 5.5V

● Battery-Powered Medical Equipment

● Low-Power Wireless Communication Products

OUT

CIN

10µF

Ordering Information appears at end of data sheet.

GND

MAX1722X

COUT

10µF

STARTUP

0.88 (TYP)

RSEL

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

19-8753; Rev 3; 7/17

12 3 4 5 6 7...23

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与MAX17222相关器件

型号	品牌	获取价格	描述	数据表
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
MAX17223	ADI	获取价格	400mV至5.5V输入、nanoPower同步升压转换器，带真关断
MAX17223ELT	MAXIM	获取价格	400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown
MAX17223ELT+	MAXIM	获取价格	Switching Regulator,
MAX17223ENT	MAXIM	获取价格	400mV to 5.5V Input, nanoPower Synchronous Boost Converter with True Shutdown

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