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| 型号： | MAX1703ESE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC 5V/ADJ 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 升压（升压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 5V，2.5 V ~ 5.5 V |
| 输入电压： | 0.7 V ~ 5.5 V |
| 频率 - 开关： | 300kHz |
| 电流 - 输出： | 1.5A |
| 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： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-SOIC |
| 产品目录页面： | 1410 (CN2011-ZH PDF) |
19-1336; Rev 2; 11/98
KIT MA
EVALU
TA SHE
FOLLO
ATION ET
WS DA
NUAL
1-Cell to 3-Cell, High-Power (1.5A),
Low-Noise, Step-Up DC-DC Converter
________________General Description
The MAX1703 is a high-efficiency, low-noise, step-up
DC-DC converter intended for use in battery-powered
wireless applications. It uses a synchronous-rectified
pulse-width-modulation (PWM) boost topology to gen-
erate a 2.5V to 5.5V output from battery inputs, such as
one to three NiCd/NiMH cells or one Li-Ion cell. The
device includes a 2A, 75m ? , N-channel MOSFET
switch and a 140m ? , P-channel synchronous rectifier.
With its internal synchronous rectifier, the MAX1703
delivers up to 5% better efficiency than similar nonsyn-
chronous converters. It also features a pulse-frequency-
modulation (PFM) low-power mode to improve efficiency
at light loads, and a 1μA shutdown mode.
The MAX1703 comes in a 16-pin narrow SO package
and includes an uncommitted comparator that generates
a power-good or low-battery-warning output. It also
contains a linear gain block that can be used to build a
____________________________Features
o Up to 95% Efficiency
o Up to 1.5A Output
o Fixed 5V or Adjustable Step-Up Output
(2.5V to 5.5V)
o 0.7V to 5.5V Input Range
o Low-Power Mode (300μW)
o Low-Noise, Constant-Frequency Mode (300kHz)
o Synchronizable Switching Frequency
(200kHz to 400kHz)
o 1μA Logic-Controlled Shutdown
o Power-Good Comparator
o Uncommitted Gain Block
Ordering Information
linear regulator.
For lower-power outputs and a smaller package, refer
to the MAX1700/MAX1701. For dual outputs (step-up
PART
MAX1703ESE
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
16 Narrow SO
plus linear regulator), refer to the MAX1705/MAX1706.
For an on-board analog-to-digital converter, refer to the
MAX848/MAX849.
________________________Applications
The MAX1703 evaluation kit is available to speed designs.
Typical Operating Circuit
INPUT
Digital Cordless Phones
PCS Phones
Wireless Handsets
Two-Way Pagers
Personal Communicators
Palmtop Computers
Hand-Held Instruments
Pin Configuration
0.7V TO 5.5V
OUTPUT
TOP VIEW
OFF
MAX1703
LXP, LXN
5V OR ADJ
UP TO 1.5A
REF 1
16 ON
ON
ON
POUT
FB 2
15 POUT
PWM
OR
SYNC
CLK/
SEL
POKIN 3
OUT 4
MAX1703
14 LXP
13 POUT
PFM
OUT
GND 5
12 PGND
POWER-GOOD
INPUT
GAIN-BLOCK INPUT
POKIN
AIN
POK
POWER-GOOD
OUTPUT
AIN 6
AO 7
11 LXN
10 PGND
REF
AO
GAIN-BLOCK
OUTPUT
POK 8
9
CLK/SEL
FB
GND PGND
Narrow SO
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1703ESE+ | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters 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 |
| MAX1703ESE+T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters 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 |
| MAX1703ESE-T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters 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 |
| MAX1703EVKIT | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX1703 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 |
| MAX17040EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX17040G+ EVAL KIT - Boxed Product (Development Kits) |
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