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.
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.
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
Electrical Characteristics
(V
IN
= 5V (MAX1658), V
IN
= 6V (MAX1659); C
OUT
= 10μF;
SHDN
= IN; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
Input Voltage Range
SYMBOL
V
IN
V
OUT
SET = OUT
SET = GND,
0mA < ILOAD < 350mA
MAX1658,
5V ≤ V
IN
≤ 16.5V
MAX1659,
6V ≤ V
IN
≤ 16.5V
CONDITIONS
MIN
2.7
3.20
4.85
1.25
350
900
30
I
OUT
= 1mA
Dropout Voltage (Note 4)
ΔV
DO
I
OUT
= 350mA
MAX1658
MAX1659
2
650
490
0.03
0.05
0.003
0
10Hz to 100kHz
2.5
0.4
2.0
0.1
0.1
120
1
1500
875
%/V
%/mA
%V
OUT
mV
P-P
V
V
μA
μA
μs
mV
60
3.30
5.00
TYP
MAX
16.5
3.40
V
5.15
16
V
mA
mA
μA
UNITS
V
Output Voltage
Regulated Output Voltage Range
Maximum Output Current
Current Limit
Supply Current
I
OUT(MAX)
I
LIM
I
Q
(Note 3)
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
ΔV
LNR
ΔV
LDR
V
OSH
e
n
MAX1658, V
IN
= 5V to 16.5V
MAX1659, V
IN
= 6V to 16.5V
I
OUT
= 0mA to 350mA
V
INLSHDN
2.7V ≤ V
IN
≤ 16.5V
V
INHSHDN
2.7V ≤ V
IN
≤ 16.5V
I
SHDN
I
QSHDN
t
START
SHDN
= GND or
SHDN
= IN
SHDN
≤ 0.4V
V
OUT
= 5.0V
www.maximintegrated.com
Maxim Integrated │ 2
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
Electrical Characteristics (continued)
(V
IN
= 5V (MAX1658), V
IN
= 6V (MAX1659); C
OUT
= 10μF;
SHDN
= IN; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
SET INPUT
SET Reference Voltage
SET Input Leakage Current
THERMAL PROTECTION
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T
SD
ΔT
SD
165
10
°C
°C
V
SET
I
SET
I
OUT
= 10μA (Note 3)
T
A
= +25°C (Note 3)
T
A
= +85°C (Note 3)
1.174
1.210
0.01
0.1
1.246
0.025
V
μA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 2:
Specifications to -40°C are guaranteed by design, not production tested.
Note 3:
Adjustable configuration only. V
IN
= 16.5V.
Note 4:
The dropout voltage is defined as (V
IN
- V
OUT
) when V
OUT
is 100mV below the value of V
OUT
for V
IN
= V
OUT
+ 2V.
Typical Operating Characteristics
(V
IN
= 5V (MAX1658), V
IN
= 6V (MAX1659);
SHDN
= IN; SET = GND; C
IN
= 0.1μF; C
OUT
= 10μF tantalum; T
A
= +25°C; unless
otherwise noted.)
MAX1658
POWER-SUPPLY
REJECTION RATIO vs. FREQUENCY
MAX1658 toc01
MAX1659
POWER-SUPPLY
REJECTION RATIO vs. FREQUENCY
-16
-24
PSSR (dB)
-32
-40
-48
-56
MAX1658 toc03
-10
-20
-30
PSRR (dB)
-40
-50
-60
-70
-80
-90
10
100
1000
FREQUENCY (Hz)
V
IN
= 5.2V TO 5.4V
V
OUT
= 3.3V
10k
-8
-64
-72
10
100
V
IN
= 6.15V TO 6.4V
V
OUT
= 5V
1000
FREQUENCY (Hz)
10k
100k
100k
www.maximintegrated.com
Maxim Integrated │ 3
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
Typical Operating Characteristics (continued)
(V
IN
= 5V (MAX1658), V
IN
= 6V (MAX1659);
SHDN
= IN; SET = GND; C
IN
= 0.1μF; C
OUT
= 10μF tantalum; T
A
= +25°C; unless
otherwise noted.)
NORMALIZED OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX1658/59 toc05
MAX1658
SUPPLY CURRENT vs. INPUT VOLTAGE
V
OUT
= 3.3V
SUPPLY CURRENT (µA)
60
I
L
= 100mA
40
MAX1658/59 toc06
QUIESCENT CURRENT
vs. LOAD CURRENT
120
100
80
60
40
20
MAX1658/59 toc09
1.000
OUTPUT VOLTAGE V
NOMINAL
/V
OUT
(V)
0.998
0.996
0.994
0.992
0.990
5V OUTPUT
80
140
3.3V OUTPUT
20
I
L
= 0mA
QUIESCENT CURRENT (µA)
0
100
200
300
400
0
0
3
6
9
12
15
18
0
0
50
100 150 200 250 300
LOAD CURRENT (mA)
350 400
OUTPUT CURRENT (mA)
INPUT VOLTAGE (V)
DROPOUT VOLTAGE
vs. OUTPUT VOLTAGE
MAX1658/59 toc07
700
DROPOUT VOLTAGE (mV)
600
500
400
300
200
100
V
OUT
= 5.0V
V
OUT
= 3.3V
DROPOUT VOLTAGE (mV)
1500
MAX1658/59 toc08
2000
DROPOUT VOLTAGE
vs. LOAD CURRENT
800
MAX1658
LINE-TRANSIENT RESPONSE
MAX1658/59 toc11
A
1000
B
500
I
L
= 350mA
0
0
3
6
9
12
15
V
OUT
= 3.3V
0
100
200
300
400
100µs/div
A: INPUT VOLTAGE (1V/div), V
IN
= 6V (HIGH), V
IN
= 5V (LOW)
B: OUTPUT VOLTAGE (100mV/div)
0
OUTPUT VOLTAGE (V)
LOAD CURRENT (mA)
MAX1659
LINE-TRANSIENT RESPONSE
MAX1658/59 toc10
MAX1658
LOAD-TRANSIENT RESPONSE
MAX1659
LOAD-TRANSIENT RESPONSE
MAX1658/59 toc13
MAX1658/59 toc12
A
A
A
B
B
V
OUT
= 5.0V
100µs/div
A: INPUT VOLTAGE (1V/div), V
IN
= 7V (HIGH), V
IN
= 6V (LOW)
B: OUTPUT VOLTAGE (100mV/div)
V
OUT
= 3.3V
200µs/div
A: OUTPUT VOLTAGE (100mV/div)
B: I
OUT
= 300mA (HIGH), I
OUT
= 40mA (LOW)
B
V
OUT
= 5V
200µs/div
A: OUTPUT VOLTAGE (100mV/div)
B: I
OUT
= 300mA (HIGH), I
OUT
= 40mA (LOW)
www.maximintegrated.com
Maxim Integrated │ 4
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
Typical Operating Characteristics (continued)
(V
IN
= 5V (MAX1658), V
IN
= 6V (MAX1659);
SHDN
= IN; SET = GND; C
IN
= 0.1μF; C
OUT
= 10μF tantalum; T
A
= +25°C; unless
otherwise noted.)
MAX1658 OVERSHOOT AND
TIME EXITING SHUTDOWN
MAX1659 OVERSHOOT AND
TIME EXITING SHUTDOWN
3.3V
5V
MAX1658/59 toc14
MAX1658/59TOC15
A
0V
A
0V
B
100µs/div
A: OUTPUT VOLTAGE (1V/div)
B:
SHDN
PIN VOLTAGE (2V/div)
B
100µs/div
A: OUTPUT VOLTAGE (2V/div)
B: SHDN PIN VOLTAGE (2V/div)
OUTPUT NOISE
10
4
OUTPUT NOISE DENSITY (nV
RMS
/√Hz)
OUTPUT NOISE DENSITY
vs. FREQUENCY
MAX1658 toc02
10
3
10
2
V
OUT
= 5V
I
OUT
= 165mA
10
FREQUENCY (Hz)
50k
10ms/div
10Hz TO 100kHz NOISE, V
OUT
= 5V (1mV/div), I
OUT
= 165mA
10
Pin Description
PIN
1
2
3, 6, 7
4, 5
8
NAME
SET
SHDN
IN
OUT
GND
FUNCTION
Output-Voltage Input. Connecting SET to ground selects the factory-preset 3.3V (MAX1658) or 5V (MAX1659)
output voltage. For an adjustable output voltage, connect SET to a resistive voltage-divider from OUT to GND.
Shutdown Input. When
SHDN
is low, the device turns off and typically draws 0.1μA of supply current.
Unregulated Input Supply Voltage, 2.7V to 16.5V input range. The IN pins also serve as heatsinks. Connect to
a copper plane to achieve maximum thermal dissipation.
Regulated Output Voltage. Fixed or adjustable from 1.25V to 16V. Sources up to 350mA. For stable operation,
bypass with a 10μF, low-ESR (<0.2Ω) capacitor from OUT to GND. For improved load-transient response, use
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