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| 型号： | MAX856CSA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST 3.3V/5V 0.15A 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V，5V |
| 输入电压： | 0.8 V ~ 6 V |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 150mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SOIC |
| 产品目录页面： | 1409 (CN2011-ZH PDF) |
19-0211; Rev 4; 5/96
ATION
EVALU
AVAIL
KIT
ABLE
3.3V/5V or Adjustable-Output,
Step-Up DC-DC Converters
_______________General Description
____________________________Features
The MAX856–MAX859 are high-efficiency, CMOS, step-
up, DC-DC switching regulators for small, low input volt-
age or battery-powered systems. The MAX856/MAX858
accept a positive input voltage between 0.8V and V OUT
and convert it to a higher, pin-selectable output voltage of
3.3V or 5V. The MAX857/MAX859 adjustable versions
accept 0.8V to 6.0V input voltages and generate higher
adjustable output voltages in the 2.7V to 6.0V range.
Typical efficiencies are greater than 85%. Typical quies-
cent supply current is 25μA (1μA in shutdown).
The MAX856–MAX859 combine ultra-low quiescent supply
current and high efficiency to give maximum battery life. An
internal MOSFET power transistor permits high switching
frequencies. This benefit, combined with internally set peak
inductor current limits, permits the use of small, low-cost
inductors. The MAX856/MAX857 have a 500mA peak
?
?
?
?
?
?
?
?
?
?
0.8V to 6.0V Input Supply Voltage
0.8V Typ Start-Up Supply Voltage
85% Efficiency at 100mA
25μA Quiescent Current
1μA Shutdown Mode
125mA and 500mA Switch-Current Limits Permit
Use of Low-Cost Inductors
Up to 500kHz Switching Frequency
±1.5% Reference Tolerance Over Temperature
Low-Battery Detector (LBI/LBO)
8-Pin SO and μMAX Packages
______________Ordering Information
inductor current limit. The MAX858/MAX859 have a 125mA
peak inductor current limit.
________________________Applications
3.3V to 5V Step-Up Conversion
Palmtop Computers
Portable Data-Collection Equipment
Personal Data Communicators/Computers
Medical Instrumentation
2-Cell & 3-Cell Battery-Operated Equipment
Glucose Meters
PART
MAX856 CSA
MAX856CUA
MAX856C/D
MAX856ESA
MAX856MJA
MAX857 CSA
MAX857CUA
MAX857C/D
MAX857ESA
MAX857MJA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
8 SO
8 μMAX
Dice*
8 SO
8 CERDIP ?
8 SO
8 μMAX
Dice*
8 SO
8 CERDIP ?
Ordering Information continued at end of data sheet.
__________Typical Operating Circuit
INPUT
0.8V TO V OUT
* Dice are tested at T A = +25°C only.
? Contact factory for availability.
__________________Pin Configuration
TOP VIEW
3/5
ON/OFF
SHDN
LX
47 μ H
OUTPUT
5V AT 100mA
OR
3.3V AT 125mA
SHDN 1
2
REF 3
MAX856
MAX858
8
7
6
LX
GND
OUT
1N5817
68 μ F
LBO 4
5
LBI
3V/5V SELECT
3/5
MAX856
OUT
SO/ μ MAX
LOW-BATTERY
DETECTOR
LBI
SHDN
1
8
LX
FB
INPUT
REF
GND
LBO
LOW-BATTERY
DETECTOR OUTPUT
2
REF 3
MAX857
MAX859
7
6
GND
OUT
LBO 4
SO/ μ MAX
5
LBI
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX856CSA+ | 功能描述:直流/直流开关转换器 3.3/5/AdjV 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 |
| MAX856CSA+T | 功能描述:直流/直流开关转换器 3.3/5/AdjV 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 |
| MAX856CSA-T | 功能描述:直流/直流开关转换器 3.3/5/AdjV 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 |
| MAX856CUA | 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 |
| MAX856CUA+ | 功能描述:直流/直流开关转换器 3.3/5/AdjV 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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