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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1659 Datasheet

Low-Dropout Linear Regulators

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MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
General Description
The MAX1658/MAX1659 linear regulators maximize
battery 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 transis-
tor, these devices maintain a low quiescent current 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
INPUT
UP TO 16.5V
IN OUT
MAX1658
MAX1659
OUTPUT
3.3V OR 5V,
OR ADJ. (DOWN TO 1.25V);
UP TO 350mA
ON
OFF
SHDN
GND SET
Features
● 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:
• Fixed 3.3V (MAX1658)
• Fixed 5.0V (MAX1659)
or Adjustable (1.25V to 16V)
● Thermal-Overload Protection
● Current-Limit Protection
● 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.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration
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.
19-1263; Rev 1; 5/14


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1659 Datasheet

Low-Dropout Linear Regulators

No Preview Available !

MAX1658/MAX1659
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
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
Note 1: See Operating Region and Power Dissipation section.
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
Input Voltage Range
Output Voltage
SYMBOL
CONDITIONS
VIN SET = OUT
VOUT
SET = GND,
0mA < ILOAD < 350mA
MAX1658,
5V ≤ VIN ≤ 16.5V
MAX1659,
6V ≤ VIN ≤ 16.5V
MIN
2.7
3.20
4.85
TYP
3.30
5.00
MAX UNITS
16.5
V
3.40
5.15
V
Regulated Output Voltage Range
(Note 3)
1.25
16 V
Maximum Output Current
Current Limit
Supply Current
Dropout Voltage (Note 4)
Line Regulation
Load Regulation
Startup Overshoot
Output Noise
SHUTDOWN
Logic-Low Input
Logic-High Input Threshold
Shutdown Input Bias Current
Shutdown Supply Current
Shutdown Exit Time
IOUT(MAX)
ILIM
IQ
IOUT = 1mA
ΔVDO IOUT = 350mA
MAX1658
MAX1659
ΔVLNR
ΔVLDR
VOSH
en
MAX1658, VIN = 5V to 16.5V
MAX1659, VIN = 6V to 16.5V
IOUT = 0mA to 350mA
10Hz to 100kHz
VINLSHDN 2.7V ≤ VIN ≤ 16.5V
VINHSHDN 2.7V ≤ VIN ≤ 16.5V
ISHDN SHDN = GND or SHDN = IN
IQSHDN SHDN ≤ 0.4V
tSTART VOUT = 5.0V
350 mA
900 mA
30 60 μA
2
650 1500 mV
490 875
0.03
0.05
%/V
0.003
%/mA
0 %VOUT
2.5 mVP-P
0.4
2.0
0.1
0.1 1
120
V
V
μA
μA
μs
www.maximintegrated.com
Maxim Integrated 2


Part Number MAX1659
Description Low-Dropout Linear Regulators
Maker Maxim
Total Page 10 Pages
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