MAX1658 Maxim, MAX1658 Datasheet
MAX1658
Manufacturer Part Number
MAX1658
Description
350mA / 16.5V Input / Low-Dropout Linear Regulators
Manufacturer
Maxim
Datasheet
1.MAX1658.pdf
(12 pages)
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The MAX1658/MAX1659 linear regulators maximize bat-
tery life by combining ultra-low supply currents and low
dropout voltages. They feature Dual Mode™ operation,
which presets the output to 3.3V (MAX1658) or 5V
(MAX1659), or permits it to be adjusted between 1.25V
and 16V. The regulator supplies up to 350mA, with a
typical dropout of 650mV for the MAX1658 and 490mV
for the MAX1659. With their P-channel MOSFET pass
transistor, these devices maintain a low quiescent cur-
rent from zero output current to the full 350mA, even in
dropout. They support input voltages ranging from 2.7V
to 16.5V.
The MAX1658/MAX1659 feature a 1µA shutdown mode,
reverse battery protection, short-circuit protection, and
thermal shutdown. They are available in a special high-
power (1.2W), 8-pin SO package designed specifically
for compact applications.
________________________Applications
19-1263; Rev 0; 7/97
Dual Mode is a trademark of Maxim Integrated Products.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
__________Typical Operating Circuit
_______________General Description
ON
UP TO 16.5V
OFF
INPUT
Digital Cordless Phones
PCS Phones
Cellular Phones
PCMCIA Cards
Modems
Hand-Held Instruments
Palmtop Computers
Electronic Planners
________________________________________________________________ Maxim Integrated Products
IN
SHDN
GND
MAX1658
MAX1659
SET
OUT
OUTPUT
3.3V OR 5V,
OR ADJ. (DOWN TO 1.25V);
UP TO 350mA
Low-Dropout Linear Regulators
* Dice are tested at T
____________________________Features
______________Ordering Information
MAX1658C/D
MAX1658ESA
MAX1659C/D
MAX1659ESA
__________________Pin Configuration
Wide Input Voltage Range: 2.7V to 16.5V
Low, 490mV Dropout at 350mA Output Current
(MAX1659)
30µA Supply Current
1µA Max Shutdown Current
High-Power (1.2W) 8-Pin SO Package
Dual Mode Operation Output:
Thermal Overload Protection
Current-Limit Protection
Reverse Battery Protection
PART
Fixed 3.3V (MAX1658)
Fixed 5.0V (MAX1659)
or Adjustable (1.25V to 16V)
TOP VIEW
350mA, 16.5V Input,
SHDN
A
OUT
SET
-40°C to +85°C
-40°C to +85°C
IN
= +25°C, DC parameters only.
TEMP. RANGE
0°C to +70°C
0°C to +70°C
1
2
4
3
MAX1658
MAX1659
SO
Dice*
8 SO
Dice*
8 SO
PIN-PACKAGE
8
7
6
5
GND
IN
IN
OUT
1
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