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| 型号： | MAX5008CUB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/7页 |
| 文件大小： | 0K |
| 描述： | IC CHARGE PUMP USB 5V 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，USB |
| 输入电压： | 2.95 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 5V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
19-2426; Rev 1; 7/06
Regulated 5V USB Charge Pump with
Programmable Current Limit
General Description
The MAX5008 charge-pump regulator generates a reg-
ulated 5V output up to 125mA with a 2.95V to 5.5V input
voltage range. The device includes resistor-program-
mable overcurrent limit. The MAX5008 requires a mini-
mum number of external components for normal
operation. The high 1MHz switching frequency allows
the use of small surface-mount ceramic capacitors.
The fault-protection circuitry limits the output current
when it exceeds the limit set by an external resistor.
The output current can range from 1mA to 150mA to
accommodate circuit requirements. A FAULT output
indicates when the device is in current limit or the out-
put is out of regulation.
A low-power shutdown mode reduces supply current to
less than 1μA and places the output in a high-imped-
ance state. The MAX5008 is offered in a space-saving
10-pin μMAX ? package that is only 1.1mm high.
Applications
Features
? Regulated 5V Output Up to 125mA
? Indefinite Short-Circuit Protection
? Adjustable Output Current Limit
? No Inductors Required
? 0.1μA Shutdown Current
? Thermal Shutdown
? Fault Output Indicates Overcurrent or Output
Voltage Out of Regulation
? 2.95V to 5.5V Input Voltage Range
? 10-Pin μMAX Package
Ordering Information
Flash Memory Supplies
USB Host Devices
PART
MAX5008CUB
TEMP RANGE
0°C to +70°C
PIN-PACKAGE
10 μMAX
Battery-Powered Systems
3.3V to 5V Local Conversion
Pin Configuration appears at end of data sheet.
μMAX is a registered trademark of Maxim Integrated Products, Inc.
Typical Operating Circuit
C X
0.68 μ F
7
9
V IN
CXN
CXP
2.95V TO 5.5V
8
IN
4.7 μ F
100k ?
5
SHDN
MAX5008
OUT
2
200 ? *
47nF*
R CS
0.4 ?
V OUT
5V
C OUT
4.7 μ F
3
FAULT
RCS
1
200 ? *
CEXT
10
GND
4
PGND
6
I OUT
C EXT
6.8 μ F
*USE IF PRECISION CURRENT LIMIT IS REQUIRED.
________________________________________________________________ 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.
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