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| 型号： | MAX5080ATE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1A 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.23 V ~ 32 V |
| 输入电压： | 4.5 V ~ 40 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 250kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
19-3656; Rev 1; 2/07
1A, 40V, MAXPower Step-Down
DC-DC Converters
General Description
The MAX5080/MAX5081 are 250kHz PWM step-down
DC-DC converters with an on-chip, 0.3 ? high-side
switch. The input voltage range is 4.5V to 40V for the
MAX5080 and 7.5V to 40V for the MAX5081. The output
is adjustable from 1.23V to 32V and can deliver up to
1A of load current.
Both devices utilize a voltage-mode control scheme for
good noise immunity in the high-voltage switching envi-
ronment and offer external compensation allowing for
maximum flexibility with a wide selection of inductor val-
ues and capacitor types. The switching frequency is
internally fixed at 250kHz and can be synchronized to
an external clock signal through the SYNC input. Light
load efficiency is improved by automatically switching
to a pulse-skip mode.
All devices include programmable undervoltage lock-
out and soft-start. Protection features include cycle-by-
cycle current limit, hiccup-mode output short-circuit
protection, and thermal shutdown. Both devices are
available in a space-saving, high-power (2.7W), 16-pin
TQFN package and are rated for operation over the
Features
? 4.5V to 40V (MAX5080) or 7.5V to 40V (MAX5081)
Input Voltage Range
? 1A Output Current
? V OUT Range From 1.23V to 32V
? Internal High-Side Switch
? Fixed 250kHz Internal Oscillator
? Automatic Switchover to Pulse-Skip Mode at
Light Loads
? External Frequency Synchronization
? Thermal Shutdown and Short-Circuit Protection
? Operates Over the -40°C to +125°C Temperature
Range
? Space-Saving (5mm x 5mm) High-Power 16-Pin
TQFN Package
Ordering Information
-40°C to +125°C temperature range.
Applications
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
FireWire ? Power Supplies
Distributed Power
Automotive
Industrial
MAX5080 ATE
MAX5081 ATE
-40°C to +125°C
-40°C to +125°C
16 TQFN-EP*
16 TQFN-EP*
T1655-2
T1655-2
* EP = Exposed pad.
Pin Configurations appear at end of data sheet.
FireWire is a registered trademark of Apple Computer, Inc.
Typical Operating Circuits
V IN
4.5V TO 40V
C F
D1
R1
IN
DVREG
C-
C+
BST
LX
C BST
L1
V OUT
C6
C1
REG
MAX5080
D2
C5
R6
R3
ON/OFF
FB
C8
R2
SYNC SGND PGND
SS
COMP
R5
C7
R4
C2
PGND
Typical Operating Circuits continued at end of data sheet.
C SS
PGND
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5080ATE+ | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX5080ATE+T | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX5080ATE-T | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX5080EVKIT | 功能描述:电源管理IC开发工具 MAX5080-83 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX5081ATE | 功能描述:直流/直流开关转换器 1A 40V MAXPower Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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