Manual

PAM3103
Document number: DSxxxxx Rev. 1 - 5
3 of 11
www.diodes.com
July 2013
© Diodes Incorporated
PAM3103
A
Product Line o
f
Diodes Incorporated
Recommended Operating Conditions (@T
A
= +25°C, unless otherwise specified.)
Parameter Rating Unit
Supply Voltage Range 2.5 to 5.5 V
Junction Temperature -40 to +125
°C
Operation Temperature -40 to +85
Thermal Information
Parameter Symbol Package Max Unit
Thermal Resistance Junction to Case)
θ
JC
TSOT25 130
°C/W
SOT353(SC70-5) TBD
Thermal Resistance (Junction to Ambient)
θ
JA
TSOT25 250
SOT353(SC70-5) 300
Internal Power Dissipation
P
D
TSOT25 400
mW
SOT353(SC70-5) 300
Electrical Characteristics (@T
A
= +25°C, V
IN
= 4V, V
O
= 3V, C
IN
= 1µF, C
O
= 2.2µF, unless otherwise specified.)
Parameter Symbol Test Conditions Min Typ Max Units
Input Voltage
V
IN
Note 1 5.5 V
Output Voltage
V
O
1.2 5 V
Reference Voltage
V
REF
1.235 V
Output Voltage Accuracy
V
O
I
O
= 1mA
-2 2 %
Output Current
I
O
300 Note 2 mA
Short Circuit Current
I
SC
V
O
= 0V
150 mA
Dropout Voltage
V
DROP
I
O
= 300mA
2.5V ≤ V
O
< 3.3V
370 450
mV
V
O
≥ 3.3V
180 230
Ground Current
I
GND
I
O
= 1mA to 300mA
70 90 µA
Quiescent Current
I
Q
I
O
= 0mA
65 90 µA
Line Regulation LNR
I
O
= 1mA, V
IN
= 3V to 5V
-0.4 0.2 0.4 %/V
Load Regulation LDR
I
O
= 1mA to 300mA
-1 0.2 1 %
Temperature Coefficient
T
C
40 Ppm/°C
Over Temperature Shutdown OTS
I
O
= 1mA
150 °C
Over Temperature Hysteresis OTH
I
O
= 1mA
30 °C
Power Supply Ripple Rejection PSRR
I
O
= 100mA, V
O
= 1.2V
f = 100Hz 67 dB
f = 1kHz 65 dB
f = 10kHz 42 dB
Output Noise
V
N
f = 10Hz to 100kHz 50
µV
RMS
EN Input High Threshold
V
IH
V
IN
2.5V to 5V
1.5 V
EN Input Low Threshold
V
IL
V
IN
2.5V to 5V
0.3 V
Shutdown Current
I
SD
V
EN
= 0V
0.01 1 µA
Notes: 1. The minimym inout voltage (V
IN(MIN
) of the PAM3103 is determined by output voltage and dropout voltage. The minimum input voltage is defined as:
V
IN(MIN)
= V
O
+V
DROP
V
IN(MIN)
= 2.5V
2. Output current is limited by P
D
, maximum I
O
= P
D
/(V
IN(MAX)
– V
O
).