Datasheet > ISL91117II7-EVZ

ISL91117II7-EVZ

更新时间： 2024-11-09 01:00:03

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
12页	528K
描述
True input-output disconnect when disabled

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中文翻译

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数据手册

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ISL91117II7-EVZ 数据手册

High Efficiency Synchronous Boost Converter with

4.2A Switches and Output Disconnect

ISL91117

Features

• Input voltage range: 1.8V to 4.8V

• Fixed 5V or adjustable output

The ISL91117 is a highly-integrated boost switching regulator

for battery powered applications. The device provides a power

supply solution for products using dual-cell or three-cell

alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery.

• Output current: up to 1.5A (PVIN = 3.3V, VOUT = 5V)

• High efficiency: up to 96%

This device is capable of delivering an output current of 1.5A

with PVIN = 3.3V and VOUT = 5V. The use of a synchronous

rectifier maximizes efficiency at high loads. No-load quiescent

current of only 35µA optimizes efficiency under light-load

conditions. Forced PWM and/or synchronization to an external

clock may also be selected for noise sensitive applications.

• 35µA quiescent current maximizes light-load efficiency

• True input-output disconnect when disabled

• 2.6MHz switching frequency minimizes external component

size

• Selectable forced-PWM mode and external synchronization

The ISL91117 is designed for standalone applications and

supports 5V fixed output voltage or variable output voltages

with an external resistor divider. Power supply solution size is

minimized by a 2.34mm x 1.72mm WLCSP and a 2.6MHz

switching frequency, which allows for the use of tiny,

low-profile inductors and ceramic capacitors to minimize the

size of the solution.

• Fully protected for short-circuit, over-temperature and

undervoltage

• Small 2.34mm x 1.72mm WLCSP

Applications

• Smart phones and tablets

Related Literature

• AN1918, ISL91117II7-EVZ, ISL91117IIA-EVZ Evaluation

Boards

• Wireless communication devices

• Products including portable HDMI and USB-OTG

L1 1µH

100

VIN = 4.2V

VIN =

1.8V TO 4.8V

BLKG

PVIN

VIN = 3.6V

VOUT = 5V

VIN = 3.0V

22µF

VOUT

VIN = 2.7V

ISL91117

VIN

2x22µF

MODE

0.1

100

1000

LOAD CURRENT (mA)

FIGURE 1. TYPICAL FIXED OUTPUT APPLICATION

FIGURE 2. EFFICIENCY vs LOAD CURRENT (VOUT = 5V)

March 7, 2014

FN8569.3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...12

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与ISL91117II7-EVZ相关器件

型号	品牌	获取价格	描述	数据表
ISL91117II7Z-T	RENESAS	获取价格	High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect
ISL91117II7Z-T	INTERSIL	获取价格	True input-output disconnect when disabled
ISL91117II7Z-T7A	RENESAS	获取价格	High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect
ISL91117II7Z-T7A	INTERSIL	获取价格	True input-output disconnect when disabled
ISL91117IIA-EVZ	INTERSIL	获取价格	True input-output disconnect when disabled
ISL91117IIA-EVZ	RENESAS	获取价格	High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect
ISL91117IIAZ-T	INTERSIL	获取价格	True input-output disconnect when disabled
ISL91117IIAZ-T	RENESAS	获取价格	High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect
ISL91117IIAZ-T7A	INTERSIL	获取价格	True input-output disconnect when disabled
ISL91117IIAZ-T7A	RENESAS	获取价格	High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect

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