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| 型号： | ISL6273EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD 1 FOR ISL6273 |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 1 |
| 系列： | * |
E SI G
WD
DUC
FO R
DE D PR O
STI T
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SUB 9106
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S I BL
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ISL
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EN U TE
Data Sheet
March 7, 2006
ISL6273
FN9256.0
1.2A Low Quiescent Current 1.5MHz High
Efficiency Synchronous Buck Regulator
ISL6273 is a 1.2A, 1.5MHz step-down regulator, which is
ideal for powering low-voltage microprocessors in compact
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 guaranteed minimum output current of 1.2A. 1.5MHz
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
as low as 25 μ A quiescent current for highest light load
efficiency to maximize battery life.
The ISL6273 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 1.2A.
The ISL6273 offers a 200ms Power-On-Reset (POR) timer
at power up. The timer output can be reset by RSI. When
shutdown, ISL6273 discharges the output capacitor. Other
features include internal digital soft-start, enable for power
sequence, overcurrent protection, and thermal shutdown.
The ISL6273 is offered in a 10 Ld 3x3mm DFN package with
1mm maximum height. The complete converter occupies
less than 1 cm 2 area.
Ordering Information
Features
? High efficiency Synchronous Buck Regulator with up to
95% Efficiency
? 200ms Reset Timer
? Discharge Output Cap when Shutdown
? 2.7V to 5.5V Supply Voltage
? 3% Output Accuracy Over Temperature/Load/Line
? 1.2A Guaranteed Output Current
? 25 μ A Quiescent Supply Current in IQ Mode
? Selectable Forced PWM Mode and IQ Mode
? Less than 1 μ A Logic Controlled Shutdown Current
? 100% Maximum Duty Cycle for Lowest Dropout
? Internal Loop Compensation
? Internal Digital Soft-Start
? Peak Current Limiting, Short Circuit Protection
? Over-Temperature Protection
? Enable
? Small 10 Ld 3x3mm DFN
? Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
? Single Li-Ion Battery-Powered Equipment
PART
TEMP.
NUMBER
(NOTE)
PART
MARKING
RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
? DSP Core Power
? PDAs and Palmtops
ISL6273IRZ
273Z
-40 to 85 10 Ld 3x3 DFN L10.3x3C
ISL6273IRZ-T 273Z
-40 to 85 10 Ld 3x3 DFN L10.3x3C
Pinout
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
ISL6273 (10 LD 3X3 DFN)
TOP VIEW
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
PVIN
VCC
1
2
10 PHASE
9 PGND
IPC/JEDEC J STD-020.
EN 3
POR 4
8 SGND
7 FB
MODE
5
6 RSI
1
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.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6273IRZ | 功能描述:IC BUCK SYNC ADJ 1.2A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:4.5V 输入电压:2.65 V ~ 4.35 V PWM 型:电流模式 频率 - 开关:3.5MHz 电流 - 输出:800mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:9-UFBGA，DSBGA 包装:Digi-Reel® 供应商设备封装:9-DSBGA（1.2x1.3） 其它名称:296-29764-6 |
| ISL6273IRZ-T | 功能描述:IC BUCK SYNC ADJ 1.2A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:4.5V 输入电压:2.65 V ~ 4.35 V PWM 型:电流模式 频率 - 开关:3.5MHz 电流 - 输出:800mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:9-UFBGA，DSBGA 包装:Digi-Reel® 供应商设备封装:9-DSBGA（1.2x1.3） 其它名称:296-29764-6 |
| ISL6274AIRZ-TR5256 | 制造商:Intersil Corporation 功能描述: |
| ISL62771HRTZ | 功能描述:IC PWM CTRLR MULTIPHASE 40TQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:Robust Ripple Regulator™ (R³) 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL62771HRTZ-T | 功能描述:IC PWM CTRLR MULTIPHASE 40TQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:Robust Ripple Regulator™ (R³) 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
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