MAX1659ESA+ Maxim Integrated Products, MAX1659ESA+ Datasheet - Page 5
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MAX1659ESA+
Manufacturer Part Number
MAX1659ESA+
Description
IC LDO REG 350MA 16.5VIN 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Linearr
Datasheet
1.MAX1658ESA.pdf
(12 pages)
Specifications of MAX1659ESA+
Regulator Topology
Positive Fixed or Adjustable
Voltage - Output
5V, 1.25 ~ 16 V
Voltage - Input
2.7 ~ 16.5 V
Voltage - Dropout (typical)
0.49V @ 350mA
Number Of Regulators
1
Current - Output
350mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Package
8SOIC N
Function
LDO
Number Of Outputs
1
Input Voltage Range
16.5 to 2.7 V
Output Voltage
1.25 to 16|5 V
Maximum Output Current
0.35(Min) A
Output Type
Adjustable|Fixed
Accuracy
±3 %
Typical Dropout Voltage @ Current
0.002@1mA|0.49@350mA V
Polarity
Positive
Reference Voltage
1.246 V
Input Voltage Max
16.5 V
Dropout Voltage (max)
875 mV
Output Current
350 mA
Line Regulation
0.05 % / V
Load Regulation
0.003 %/mA
Voltage Regulation Accuracy
3 %
Maximum Power Dissipation
1.2 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
______________________________________________________________Pin Description
(V
otherwise noted.)
____________________________Typical Operating Characteristics (continued)
3, 6, 7
PIN
4, 5
IN
1
2
8
= 5V (MAX1658), V
10Hz TO 100kHz NOISE, V
A
B
NAME
SHDN
GND
OUT
SET
IN
A: OUTPUT VOLTAGE (1V/div)
B: SHDN PIN VOLTAGE (2V/div)
MAX1658 OVERSHOOT AND
TIME EXITING SHUTDOWN
_______________________________________________________________________________________
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 opera-
tion, bypass with a 10µF, low-ESR (<0.2Ω) capacitor from OUT to GND. For improved load-transient
response, use a larger low-ESR capacitor.
Ground
IN
OUTPUT NOISE
= 6V (MAX1659); SHDN = IN; SET = GND; C
100 s/div
OUT
10ms/div
= 5V (1mV/div), I
MAX1658/59TOC14
OUT
= 165mA
Low-Dropout Linear Regulators
3.3V
0V
FUNCTION
IN
= 0.1µF; C
350mA, 16.5V Input,
10
10
10
10
4
3
2
A
B
10
A: OUTPUT VOLTAGE (2V/div)
B: SHDN PIN VOLTAGE (2V/div)
OUT
MAX1659 OVERSHOOT AND
TIME EXITING SHUTDOWN
= 10µF tantalum; T
OUTPUT NOISE DENSITY
vs. FREQUENCY
FREQUENCY (Hz)
100 s/div
V
I
OUT
OUT
= 165mA
MAX1658/59TOC15
= 5V
A
= +25°C; unless
50k
5V
0V
5