Datasheet > ISL9105

ISL9105

更新时间： 2024-09-19 04:44:59

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
11页	580K
描述
600mA Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator

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ISL9105 数据手册

ISL9105

Data Sheet

February 13, 2007

FN6415.1

600mA Low Quiescent Current 1.6MHz

High Efficiency Synchronous Buck

Regulator

Features

• High Efficiency Synchronous Buck Regulator with up to

95% Efficiency

ISL9105 is a 600mA, 1.6MHz step-down regulator that is

ideal for powering low-voltage microprocessors in handheld

devices such as PDAs and cellular phones. It is optimized

for generating low output voltages down to 0.8V. The supply

voltage range is from 2.7V to 5.5V allowing the use of a

single Li+ cell, three NiMH cells or a regulated 5V input. It

has a guaranteed minimum output current of 600mA.

1.6MHz pulse-width modulation (PWM) switching frequency

allows using small external components. It has flexible

operation mode selection of forced PWM mode and low IQ

mode with typical 25μA quiescent current for highest light

load efficiency to maximize battery life.

• Selectable Forced PWM Mode and SKIP Mode

• 25μA Quiescent Supply Current in SKIP Mode

• 2.7V to 5.5V Supply Voltage

• 216ms POR Timer

• 3% Output Accuracy Over Temperature/Line/Load

• 600mA Guaranteed Output Current

• Less Than 1μA Logic Controlled Shutdown Current

• 100% Maximum Duty Cycle for Lowest Dropout

• Discharge Output Capacitor when Shutdown

• Internal Loop Compensation

The ISL9105 includes a pair of low on-resistance P-Channel

and N-Channel internal MOSFETs to maximize efficiency

and minimize external component count. 100% duty-cycle

operation allows less than 200mV dropout voltage at 600mA

output current.

• Internal Digital Soft-Start

• Peak Current Limit Protection, Short Circuit Protection

• Over-Temperature Protection

The ISL9105 offers a typical 216ms Power-On-Reset (POR)

timer at power-up. The timer output can be reset by RSI.

When shutdown, ISL9105 discharges the output capacitor.

Other features include internal digital soft-start, enable for

power sequence, overcurrent protection, and thermal

shutdown.

• Enable

• Small 8 Ld 2x3mm DFN

• Pb-Free Plus Anneal Available (RoHS Compliant)

The ISL9105 is offered in a 2mmx3mm 8 Ld DFN package

with 1mm maximum height. The complete converter

occupies less than 1cm area.

Applications

• Single Li-Ion Battery-Powered Equipment

• DSP Core Power

Ordering Information(to be updated)

• PDAs and Palmtops

TEMP.

PART NUMBER

(NOTE)

PART

MARKING

RANGE

(°C)

PACKAGE

(Pb-free)

PKG.

DWG. #

Pinout

ISL9105

(8 LD DFN)

TOP VIEW

ISL9105IRZ-T

05Z

-40 to +85 8 Ld 2x3 DFN L8.2x3

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100% matte

tin plate termination finish, which are RoHS compliant and compatible

with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that

meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

VIN

PHASE

POR

GND

MODE

RSI

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

12 3 4 5 6 7...11

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与ISL9105相关器件

型号	品牌	获取价格	描述	数据表
ISL9105IRZ-T	INTERSIL	获取价格	600mA Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator
ISL9106	INTERSIL	获取价格	1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9106	RENESAS	获取价格	1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9106IRZ	INTERSIL	获取价格	1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9106IRZ-T	INTERSIL	获取价格	1.2A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9107	INTERSIL	获取价格	1.5A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9107	RENESAS	获取价格	1.5A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9107IRZ-T	INTERSIL	获取价格	1.5A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9108	INTERSIL	获取价格	1.5A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL9108	RENESAS	获取价格	1.5A 1.6MHz Low Quiescent Current High Efficiency Synchronous Buck Regulator

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