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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1658 Datasheet

350mA / 16.5V Input / Low-Dropout Linear Regulators

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MAX1658 pdf
19-1263; Rev 0; 7/97
350mA, 16.5V Input,
Low-Dropout Linear Regulators
_______________General Description
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
Digital Cordless Phones
PCS Phones
Cellular Phones
PCMCIA Cards
Modems
Hand-Held Instruments
Palmtop Computers
Electronic Planners
__________Typical Operating Circuit
____________________________Features
o Wide Input Voltage Range: 2.7V to 16.5V
o Low, 490mV Dropout at 350mA Output Current
(MAX1659)
o 30µA Supply Current
o 1µA Max Shutdown Current
o High-Power (1.2W) 8-Pin SO Package
o Dual Mode Operation Output:
Fixed 3.3V (MAX1658)
Fixed 5.0V (MAX1659)
or Adjustable (1.25V to 16V)
o Thermal Overload Protection
o Current-Limit Protection
o Reverse Battery Protection
______________Ordering Information
PART
TEMP. RANGE PIN-PACKAGE
MAX1658C/D
0°C to +70°C
Dice*
MAX1658ESA -40°C to +85°C
8 SO
MAX1659C/D
0°C to +70°C
Dice*
MAX1659ESA -40°C to +85°C
8 SO
*Dice are tested at TA = +25°C, DC parameters only.
__________________Pin Configuration
INPUT
UP TO 16.5V
ON
OFF
OUTPUT
3.3V OR 5V,
OR ADJ. (DOWN TO 1.25V);
UP TO 350mA
IN OUT
MAX1658
MAX1659
SHDN
GND SET
TOP VIEW
SET 1
SHDN 2
IN 3
OUT 4
MAX1658
MAX1659
8 GND
7 IN
6 IN
5 OUT
SO
Dual Mode is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products 1
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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1658 Datasheet

350mA / 16.5V Input / Low-Dropout Linear Regulators

No Preview Available !

MAX1658 pdf
350mA, 16.5V Input,
Low-Dropout Linear Regulators
ABSOLUTE MAXIMUM RATINGS
IN to GND ................................................................-17V to +17V
Continuous Output Current ...............................................500mA
Output Short-Circuit Duration ............................................Infinite
SET, SHDN to GND .................................................-17V to +17V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (Note 1)
SO (derate 14.5mW/°C above +70°C) .............................1.2W
Note 1: See Operating Region and Power Dissipation section.
Operating Temperature Range
MAX1658ESA/MAX1659ESA ............................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature Range (soldering, 10sec)..................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = 5V (MAX1658), VIN = 6V (MAX1659); COUT = 10µF; SHDN = IN; TA = TMIN to TMAX; unless otherwise noted. Typical values are
at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
VIN SET = OUT
2.7 16.5 V
Output Voltage
VOUT
SET = GND,
0mA < ILOAD < 350mA
MAX1658,
5V VIN 16.5V
MAX1659,
6V VIN 16.5V
3.20 3.30 3.40
4.85 5.00 5.15
V
Regulated Output
Voltage Range
(Note 3)
1.25 16 V
Maximum Output Current
Current Limit
Supply Current
Dropout Voltage (Note 4)
IOUT(MAX)
ILIM
IQ
VDO
IOUT = 1mA
IOUT = 350mA
MAX1658
MAX1659
350 mA
900 mA
30 60 µA
2
650 1500 mV
490 875
Line Regulation
Load Regulation
Startup Overshoot
Output Noise
SHUTDOWN
VLNR
VLDR
VOSH
en
MAX1658, VIN = 5V to 16.5V
MAX1659, VIN = 6V to 16.5V
IOUT = 0mA to 350mA
10Hz to 100kHz
0.03
0.05
0.003
0
2.5
%/V
%/mA
%VOUT
mVp-p
Logic-Low Input
Logic-High Input Threshold
Shutdown Input Bias Current
Shutdown Supply Current
Shutdown Exit Time
VINLSHDN
VINHSHDN
ISHDN
IQSHDN
tSTART
2.7V VIN 16.5V
2.7V VIN 16.5V
SHDN = GND or SHDN = IN
SHDN 0.4V
VOUT = 5.0V
0.4 V
2.0 V
0.1 µA
0.1 1 µA
120 µs
2 _______________________________________________________________________________________


Part Number MAX1658
Description 350mA / 16.5V Input / Low-Dropout Linear Regulators
Maker Maxim
Total Page 12 Pages
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