MAX619 Maxim, MAX619 Datasheet
MAX619
Manufacturer Part Number
MAX619
Description
Regulated 5V Charge-Pump DC-DC Converter
Manufacturer
Maxim
Datasheet
1.MAX619.pdf
(7 pages)
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The MAX619 step-up charge-pump DC-DC converter
delivers a regulated 5V ±4% output at 50mA over tem-
perature. The input voltage range is 2V to 3.6V (two
battery cells).
The complete MAX619 circuit fits into less than 0.1in
board space because it requires only four external
capacitors: two 0.22 F flying capacitors, and 10 F
capacitors at the input and output.
Low operating supply current (150 A max) and low
shutdown supply current (1 A max) make this device
ideal for small, portable, and battery-powered applica-
tions. When shut down, the load is disconnected from
the input.
The MAX619 is available in 8-pin DIP and SO packages.
________________________Applications
19-0227; Rev 2; 5/96
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
__________________Pin Configuration
_______________General Description
TOP VIEW
Two Battery Cells to 5V Conversion
Local 3V-to-5V Conversion
Portable Instruments & Handy-Terminals
Battery-Powered Microprocessor-Based Systems
5V Flash Memory Programmer
Minimum Component DC-DC Converters
Remote Data-Acquisition Systems
Compact 5V Op-Amp Supply
Regulated 5V Supply from Lithium Backup Battery
Switching Drive Voltage for MOSFETs in
Low-Voltage Systems
OUT
C1+
C2+
IN
________________________________________________________________ Maxim Integrated Products
1
2
3
4
MAX619
DIP/SO
8
7
6
5
C1-
SHDN
GND
C2-
Regulated 5V Charge-Pump
2
of
____________________________Features
_______________Ordering Information
* Dice are specified at T
__________Typical Operating Circuit
MAX619CPA
MAX619CSA
MAX619C/D
MAX619EPA
MAX619ESA
MAX619MJA
Regulated 5V ±4% Charge Pump
Output Current Guaranteed over Temperature
2V to 3.6V Input Range
No Inductors; Very Low EMI Noise
Ultra-Small Application Circuit (0.1in
Uses Small, Inexpensive Capacitors
500kHz Internal Oscillator
Logic-Controlled 1 A Max Shutdown
Supply Current
Shutdown Disconnects Load from Input
8-Pin DIP and SO Packages
20mA (V
50mA (V
PART
2V to 3.6V
INPUT
0.22 F
ON/OFF
10 F
IN
IN
DC-DC Converter
≥ 2V)
≥ 3V)
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
A
IN
C1+
C1-
SHDN
= +25 °C.
MAX619
GND
OUT
C2+
C2-
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP
10 F
2
0.22 F
)
5V, 20mA
OUTPUT
1
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