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参数资料
型号： MAX1674EUA
厂商： Maxim Integrated Products
文件页数： 1/12页
文件大小： 0K
描述： IC REG BOOST SYNC FIX/ADJ 8UMAX
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： 3.3V，5V，可调
输入电压： 0.7 V ~ 5.5 V
频率 - 开关： 500kHz
电流 - 输出： 420mA
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： 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）
包装： 管件
供应商设备封装： 8-uMAX
EVALUATION KIT AVAILABLE
AVAILAB
LE
MAX1674/MAX1675/MAX1676
High-Efficiency, Low-Supply-Current,
Compact, Step-Up DC-DC Converters
General Description
The MAX1674/MAX1675/MAX1676 compact, high-effi-
ciency, step-up DC-DC converters fit in small μMAX
packages. They feature a built-in synchronous rectifier,
which improves efficiency and reduces size and cost
by eliminating the need for an external Schottky diode.
Quiescent supply current is only 16μA.
The input voltage ranges from 0.7V to V OUT , where
V OUT can be set from 2V to 5.5V. Start-up is guaran-
teed from 1.1V inputs. The MAX1674/MAX1675/
MAX1676 have a preset, pin-selectable output for 5V or
3.3V. The outputs can also be adjusted to other volt-
ages using two external resistors.
All three devices have a 0.3 ? N-channel MOSFET
power switch. The MAX1674 has a 1A current limit. The
MAX1675 has a 0.5A current limit, which permits the
use of a smaller inductor. The MAX1676 comes in a
10-pin μMAX package and features an adjustable cur-
rent limit and circuitry to reduce inductor ringing.
____________________________Features
o 94% Efficient at 200mA Output Current
o 16μA Quiescent Supply Current
o Internal Synchronous Rectifier (no external diode)
o 0.1μA Logic-Controlled Shutdown
o LBI/LBO Low-Battery Detector
o Selectable Current Limit for Reduced Ripple
o Low-Noise, Anti-Ringing Feature (MAX1676)
o 8-Pin and 10-Pin μMAX Packages
o Preassembled Evaluation Kit (MAX1676EVKIT)
_______________Ordering Information
________________________Applications
Pagers
Wireless Phones
Medical Devices
PART
MAX1674 EUA
MAX1675 EUA
MAX1676 EUB
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 μMAX
8 μMAX
10 μMAX
Hand-Held Computers
PDAs
RF Tags
1 to 3-Cell Hand-Held Devices
Functional Diagrams
Typical Operating Circuit
TOP VIEW
Pin Configurations
INPUT
FB 1
8
OUT
0.7V TO V OUT
LBI
LBO
2
3
MAX1674
MAX1675
7
6
LX
GND
REF 4
5
SHDN
ON
OFF
SHDN LX
MAX1674 OUT
MAX1675
OUTPUT
3.3V, 5V, OR
ADJ (2V TO 5.5V)
UP TO 300mA
μ MAX
FB 1
10 OUT
LBI 2
9
LX
LOW-BATTERY
DETECT IN
LBI
REF
FB
LBO
GND
LOW-BATTERY
DETECT OUT
LBO 3
CLSEL 4
MAX1676
8
7
GND
BATT
0.1 μ F
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
REF 5
μ MAX
6
SHDN
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1360; Rev 3; 3/00
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相关代理商/技术参数
参数描述
MAX1674EUA+ 功能描述:直流/直流开关转换器 Compact Step-Up DC/DC Converter 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
MAX1674EUA+T 功能描述:直流/直流开关转换器 Compact Step-Up DC/DC Converter 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
MAX1674EUA-T 功能描述:直流/直流开关转换器 Compact Step-Up DC/DC Converter 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
MAX1674EUA-TG069 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX1675EUA 功能描述:直流/直流开关转换器 Compact Step-Up DC/DC Converter 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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