Datasheet > ISL9109IRZ

ISL9109IRZ

更新时间： 2024-09-19 05:39:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器开关光电二极管
页数	文件大小	规格书
13页	484K
描述
RF PA 1.5A DC/DC Regulator

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ISL9109IRZ 数据手册

ISL9109

Data Sheet

September 29, 2008

FN6681.1

RF PA 1.5A DC/DC Regulator

Features

ISL9109 is 1.6MHz synchronous step-down regulator with

integrated power switches capable of delivering 1.5A output

for powering RF Power Amplifiers in cellular phones. The

ISL9109 features a standby mode which allows for rapid

startup while prolonging battery life. 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. 1.6MHz

pulse-width modulation (PWM) switching frequency allows

using small external components. It has a flexible operation

• Integrated Synchronous Buck Regulator with up to 95%

Efficiency

• 2.7V to 5.5V Supply Voltage

• 1.5A Output Current

• 4.3µA Quiescent Supply Current in Standby Mode

• 22µA Quiescent Supply Current in Skip (Low I ) Mode

• 3% Output Accuracy Over Temperature/Load/Line

• Selectable Forced PWM Mode or Skip Mode

• Less Than 1µA Logic Controlled Shutdown Current

• 100% Maximum Duty Cycle for Lowest Dropout

• Soft-Start

mode selection of forced PWM mode and Skip (Low I )

mode with typical 22µA quiescent current for highest light

load efficiency to maximize battery life.

The ISL9109 integrates a pair of low ON-resistance

P-Channel and N-Channel MOSFETs to maximize efficiency

and minimize external component count.

• Peak Current Limiting, Short Circuit Protection

• Over-Temperature Protection

When in standby, the ISL9109 band-gap reference is

powered. This assists in a rapid power-up when the EN pin

is asserted high. Other features include soft-start,

overcurrent protection, and thermal shutdown.

• 8 Ld 2mmx3mm DFN

• Pb-Free (RoHS Compliant)

The ISL9109 is offered in 8 Ld 2mmx3mm DFN package

with 0.9mm typical height. The complete converter can

occupy less than 1cm area.

Applications

• Single Li-Ion Battery-Powered Equipment

• RF Power Amplifier

Ordering Information

• CPU Power

PART

NUMBER

(Note)

TEMP.

RANGE

(°C)

PART

MARKING

PACKAGE

(Pb-free)

PKG.

DWG. #

• PDAs and Palmtops

Pinout

ISL9109IRZ* 109

-40 to +85 8 Ld 2x3 DFN

L8.2x3

ISL9109

(8 LD 2X3 DFN)

TOP VIEW

*Add “-T” suffix for tape and reel. Please refer to TB347 for details

on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets, molding compounds/die attach

materials, and 100% matte tin plate plus anneal (e3 termination

finish, which is 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

N/C

GND

MODE

STBY

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...13

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与ISL9109IRZ相关器件

型号	品牌	获取价格	描述	数据表
ISL9109IRZ-T	RENESAS	获取价格	RF PA 1.5A DC/DC Regulator; DFN8; Temp Range: -40° to 85°C
ISL9110	INTERSIL	获取价格	1.2A High Efficiency Buck-Boost Regulators Output Current: Up to 1.2A
ISL9110	RENESAS	获取价格	1.2A High Efficiency Buck-Boost Regulators
ISL91106	INTERSIL	获取价格	High Efficiency High Current Buck-Boost Regulator with Bypass Mode
ISL91106	RENESAS	获取价格	High Efficiency High Current Buck-Boost Regulator with Bypass Mode
ISL91106A	INTERSIL	获取价格	High Efficiency High Current Buck-Boost Regulator with Bypass Mode
ISL91106A	RENESAS	获取价格	High Efficiency High Current Buck-Boost Regulator with Bypass Mode
ISL91107	RENESAS	获取价格	High Efficiency Buck-Boost Regulator with 3.6A Switches
ISL91107IIA-EVZ	RENESAS	获取价格	High Efficiency Buck-Boost Regulator with 3.6A Switches
ISL91107IIAZ-T	RENESAS	获取价格	High Efficiency Buck-Boost Regulator with 3.6A Switches

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