NOT RECOMMENDED FOR NEW DESIGN
USE
AP2132
OR
AP7173
PAM3110
1.5A LOW DROPOUT VOLTAGE CMOS REGULATOR
Description
The PAM3110 is a 1.5A CMOS LDO regulator that features a low
quiescent current and low dropout voltages, as well as over
temperature shutdown. The fixed output voltage of the PAM3110 is
set at the factory and trimmed to ±1.5%. The PAM3110 is stable with
a ceramic output capacitor of 4.7µF or higher.
This family of regulators can provide either a stand-alone power
supply solution or act as a post regulator for switch mode power
supplies. They are particularly suitable for applications requiring low
input and output voltages.
PAM3110 is available in SOT-223, TO-252 and TO-263-2L package.
Pin Assignments
Features
DSP, FPGA and Microprocessor Power Supplies
Output Voltages:1.2V, 1.5V,1.8V, 2.5V 3.3V and 5.0V
Stable with a Ceramic Output Capacitor
Dropout Voltage: 400mV@1.5A
Low Quiescent Current
Over Temperature Shutdown
Short Circuit Protection
Low Temperature Coefficient
Pb-Free Packages
Applications
DSP, FPGA and Microprocessor Power Supplies
SATA Power Supply
LCD TV/Monitors
Wireless Devices
Communication Devices
Portable Electronics
Post Regulator for SMS
PAM3110
Document number: DS36429 Rev. 2 - 3
1 of 13
www.diodes.com
August 2017
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE
AP2132
OR
AP7173
PAM3110
Typical Applications Circuit
Pin Configuration and Description
Pin Number
SOP-8(EP)
W-DFN3x3-10
7, 8, 9
6
10
5
4
1, 2, 3
—
Exposed Pad
(11)
Supply Input Voltage.
Chip Enable (Active-High).
Supply Voltage of ControlCircuitry.
Power Good Open Drain Output.
Set the output voltage by the feedback resistors. V
O
= 0.8V x (R1 + R2)/R2.
Output Voltage.
No Internal Connection.
Ground. The exposed pad must be soldered to a large PCB and connected to GND
formaximum powe r dissipation.
Pin Name
VIN
EN
CTRL
POK
ADJ
VOUT
NC
GND
Function
3
2
4
1
7
6
5
8,
Exposed Pad (9)
Functional Block Diagram
PAM3110
Document number: DS36429 Rev. 2 - 3
2 of 13
www.diodes.com
August 2017
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE
AP2132
OR
AP7173
PAM3110
Absolute Maximum Ratings
(@T
A
= +25° unless otherwise specified.)
C,
These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may
affect device reliability. All voltages are with respect to ground.
Parameter
Input Voltage
Storage Temperature
Maximum Junction Temperature
Lead Soldering Temperature
Rating
6
-65 to +150
150
300, (5sec)
Unit
V
°
C
°
C
°
C
Recommended Operating Conditions
(@T
A
= +25° unless otherwise specified.)
C,
Parameter
Supply Voltage
Ambient Temperature Range
Junction Temperature Range
Rating
2.5 to 5.5
-40 to +85
-40 to +125
Unit
V
°
C
Thermal Information
Parameter
Thermal Resistance Junction to Case)
Symbol
θ
JC
Package
SOT-223
TO-252
TO-263
SOT-223
Thermal Resistance (Junction to Ambient)
θ
JA
TO-252
TO-263
SOT-223
Internal Power Dissipation (@T
A
= 25°
C)
P
D
TO-252
TO-263
Max
7
7
7
160
90
60
625
1200
2000
mW
°
C/W
Unit
PAM3110
Document number: DS36429 Rev. 2 - 3
3 of 13
www.diodes.com
August 2017
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE
AP2132
OR
AP7173
PAM3110
Electrical Characteristics
(@T
A
= +25° V
IN
= V
O
+0.5V, V
CTRL
= V
EN
= 5V, C
IN
= C
O
= 10µF, unless otherwise specified.)
C,
Parameter
Input Voltage Range
Output Voltage Accuracy
Dropout Voltage
Short Circuit Current
Quiescent Current
Current Limit
Symbol
V
IN
V
O
V
DROP
I
SC
I
Q
I
LIM
V
O
≤ 2.5V, I
O
= 10mA
V
IN
= V
O
+1.5V to V
O
+2.5V
V
O
> 2.5V, I
O
= 10mA
V
IN
= V
O
+0.5V to V
O
+1.5V
I
O
= 1mA to 100A
I
O
= 1mA to 1.5A
I
O
= 500mA
I
O
= 1.5A
V
O
< 0.3V
I
O
= 0mA
V
O
≥ 2.5V
V
O
≥ 2.5V
Test Conditions
Min
2.5
-1.5
200
400
500
75
2
150
Typ
Max
5.5
1.5
Units
V
%
mV
mA
µA
A
Line Regulation
LNR
0.5
1
%/V
Load Regulation
Over Temperature Shutdown
Over Temperature Hysteresis
Temperature Coefficient
Power Supply Ripple Rejection
LDR
OTS
OTH
T
C
PSRR
0.5
160
30
40
f = 100Hz
f = 1kHz
f = 10kHz
55
50
35
1
%
°
C
°
C
ppm/°
C
dB
I
O
= 100mA
PAM3110
Document number: DS36429 Rev. 2 - 3
4 of 13
www.diodes.com
August 2017
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE
AP2132
OR
AP7173
PAM3110
Typical Performance Characteristics
(@T
A
= +25° C
IN
=4.7µF, C
OUT
= 4.7µF, unless otherwise specified.)
C,
PAM3110
Document number: DS36429 Rev. 2 - 3
5 of 13
www.diodes.com
August 2017
© Diodes Incorporated
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