SI-3003S Datasheet, PDF (1/2 Pages) Sanken electric – 3-terminal Dropper Type Regulator

3-terminal Dropper Type Regulator SI-3003S
Features
q 3-terminal IC regulator with 0.8A output current
q Voltage accuracy of ±2%
q Low Dropout voltage 0.5V at IO 0.5A, 1V at IO 0.8A
q Built-in constant current type overcurrent, overvoltage and thermal protection circuits
q TO-220 equivalent full-mold package
External Dimensions (unit: mm)
3.2 ^±0.2
10 ^±0.2
4.2^±0.2
2.8 ^±0.2
Absolute Maximum Ratings
Parameter
Symbol
DC input voltage
VIN
Output current
IO
PD1
Power Dissipation
PD2
Junction temperature
Tj
Operating temperature
Storage temperature
TOP
Tstg
Junction to case thermal resistance
j-c
Junction to ambient-air thermal
j-a
resistance
Ratings
35
0.8 *²
22
1.8
–40 to +150
–40 to +100
–40 to +150
5.5
66.7
Unit
V
A
W
W
ºC
ºC
ºC
ºC/W
ºC/W
(Ta =25ºC)
Conditions
With infinite heatsink
Stand-alone without heatsink
Stand-alone without heatsink
a
b
2.6^±0.15
0.94 ^±0.15
+0.2
0.85 –0.1
4•P1.7^±0.15 = 6.8^±0.15
(root dimensions)
1234 5
+0.2
0.45 –0.1
Terminal connections
1. VIN
2. (NC)
3. GND
a: Type No.
b: Lot No.
4. (NC)
5. VO
(Forming No. 1115)
Electrical Characteristics
Equivalent Circuit Diagram
(Tj=25ºC, VIN=14V, IO=0.5A unless otherwise specified)
Parameter
Ratings
Symbol
Unit
min
typ
max
Conditions
Input voltage
Output voltage
Dropout voltage
Line regulation
VIN
6*²
VO
4.90
VDIF
VO LINE
5.00
30 *¹
V
5.10
V
0.5
V
IO 0.5A
1.0
V
IO 0.8A
30
mV
VIN=8 to 16V
VIN
1
TSD
VO
5
OCP
DET
ERR
Load regulation
VO LOAD
100
mV
IO=0 to 0.5A
REF
Ripple rejection
RREJ
54
dB
f=100 to 120Hz
Quiescent circuit current
Iq
Overcurrent protection starting
IS1
current
3
0.9 *³
10
mA
IO = 0A
A
3
GND
Notes:
*1. Since PD(max) = (VIN– VO) • IO=22 (W), VIN(max) and IO (max) may be limited depending on operating
conditions. Refer to the Ta —PD curve to compute the corresponding values.
*2. Refer to the dropout voltage.
*3. IS1 rating shall be the point at which the output voltage VO (VIN=14V, IO=0.5A) drops to –5%.
Standard Circuit Diagram
D1 *2
1
DC input ⁺ *¹
2
N.C
VIN
C1 ^C2
SI-3003S
3
5
4 _{N.C + CO}
DC output
VO
Co : Output capacitor (47 to 100µF, 50V)
*¹ C1,C2 : Anti-oscillation capacitors (C1: approx. 47µF, C2: approx.
0.33µF). These are required for inductive input lines or
long wiring. Tantalum capacitors are recommended for
C1 and Co, especially at low temperatures.
*² D1 : Protection diode. Required as protection against reverse
biasing between input and output.
(Recommended diode: Sanken EU2Z.)
8