MAX5008 Maxim Integrated Products, MAX5008 Datasheet
MAX5008
Manufacturer Part Number
MAX5008
Description
MAX5008 Regulated 5V Usb Charge Pump With Programmable Current Limit
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5008.pdf
(7 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
MAX5008CUB
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX5008CUB+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX5008EJE
Manufacturer:
MAXIM
Quantity:
5 510
Company:
Part Number:
MAX5008EJE
Manufacturer:
MAXIM
Quantity:
5 510
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.
19-2426; Rev 0; 4/02
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.
Flash Memory Supplies
USB Host Devices
Battery-Powered Systems
3.3V to 5V Local Conversion
________________________________________________________________ Maxim Integrated Products
General Description
Regulated 5V USB Charge Pump with
2.95V TO 5.5V
V
Applications
IN
4.7µF
*USE IF PRECISION CURRENT LIMIT IS REQUIRED.
100kΩ
8
5
3
Programmable Current Limit
SHDN
FAULT
IN
7
CXN
GND
4
MAX5008
0.68µF
C
X
PGND
6
CXP
9
CEXT
OUT
RCS
o Regulated 5V Output Up to 125mA
o Indefinite Short-Circuit Protection
o Adjustable Output Current Limit
o No Inductors Required
o 0.1µA Shutdown Current
o Thermal Shutdown
o Fault Output Indicates Overcurrent or Output
o 2.95V to 5.5V Input Voltage Range
o 10-Pin µMAX Package
Pin Configuration appears at end of data sheet.
MAX5008CUB
Voltage Out of Regulation
10
2
1
I
OUT
PART
47nF*
200Ω*
200Ω*
Typical Operating Circuit
R
0.4Ω
CS
C
6.8µF
EXT
TEMP RANGE
Ordering Information
0°C to +70°C
C
4.7µF
OUT
V
5V
OUT
10 µMAX
PIN-PACKAGE
Features
1
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