1-1-1 Linear Regulator IC
SI-3000V Series 3-Terminal, Low Dropout Voltage Linear Regulator IC
■Features
■Absolute Maximum Ratings
(Ta=25°C)
• TO-3P package 3-terminal regulator
Ratings
Symbol
Parameter
SI-3052V
• Output current: 2.0A
SI-3122V/3152V
VIN
DC Output Current
IO
2.0
A
PD1
• Low dropout voltage: VDIF ≤ 1V (at IO=2.0A)
50(TC=25°C)
W
• Built-in foldback-overcurrent protection circuit
Power Dissipation
25
PD2
Junction Temperature
30
Unit
DC Input Voltage
V
1.6(Without heatsink, stand-alone operation)
W
°C
Top
–20 to +100
°C
Storage Temperature
Tstg
–30 to +125
°C
Thermal Resistance (junction to case)
• For stabilization of the secondary-side output
voltage of switching power supplies.
–30 to +125
Operating Ambient Temperature
■Applications
Tj
θ j-c
2.0
°C/W
• Electronic equipment
■Electrical Characteristics
(Ta=25°C)
Ratings
Parameter
Symbol
SI-3052V
min.
Input Voltage
4.9
max.
15
Conditions
min.
5.1
11.8
VIN=8V, IO=1.0A
VDIF
max.
min.
25
16
12.0
12.2
14.8
VIN=16V, IO=1.0A
typ.
max.
15.0
15.2
25
0.5
1.0
1.0
IO=1.0A
1.0
Conditions
Ripple Rejection
Overcurrent Protection
Starting Current
V
IO=2.0A
10
∆VOLINE
Conditions
30
20
VIN=6 to 15V, IO=1.0A
40
∆VOLOAD
Conditions
60
20
VIN=13 to 25V, IO=1.0A
100
80
60
mV
VIN=16 to 25V, IO=1.0A
200
80
VIN=8V, IO=0 to 2.0A
VIN=16V, IO=0 to 2.0A
±0.5
+1.5
±1.5
54
54
200
VIN=20V, IO=0 to 2.0A
∆VO/∆Ta
RREJ
Temperature Coefficient of Output Voltage
V
V
VIN=20V, IO=1.0A
0.5
Conditions
Load Regulation
typ.
0.5
Dropout Voltage
Line Regulation
unit
SI-3152V
13
5.0
6
VO
Output Voltage
VIN
SI-3122V
typ.
mV
54
Conditions
IS1
Conditions
dB
f=100 to 120HZ
2.4
2.4
VIN=8V
mV/°C
2.4
VIN=16V
VIN=20V
A
The following are also available: SI-3522V(5.2V), SI-3062V(6V), SI-3082V(8V), SI-3922V(9.2V), SI-3102V(10V), SI-3132V(13.1V), SI-3182V(18V), SI-3202V(20V).
*1: These products cannot be used in the following applications because the built-in foldback-type overcurrent protection may cause errors during start-up stage.
(1) Constant current load (2) Positive and negative power supply (3) Series-connected power supply (4) VO adjustment by raising ground voltage
*2: Is1 is specified at the 5% drop point of output voltage VO. (where VO=VIN + 3V)
56
IC