Sanken Electric Co SI-3121NA Datasheet

20

Parameter

DC Input Voltage
DC Output Current

Power Dissipation

Junction Temperature
Ambient Operating Temperature
Storage T emperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient air)

Unit

V

A
W
W

°C
°C

°C
°C/W
°C/W

■Features

• Compact full-mold package (equivalent to TO220)

• Output current: 1.5A

• Low dropout voltage: VDIF≤1V (at IO=1.5A)

• Built-in foldback overcurrent, overvoltage, thermal protection circuits

■Applications

• For stabilization of the secondary stage of switching power supplies

• Electronic equipment

■Absolute Maximum Ratings

(Ta=25°C)

SI-3001N Series

3-Terminal, Full-Mold, Low Dropout Voltage Dropper Type

●SI-3001N Series

Symbol

VIN

IO
PD1
PD2

Tj

Top

Tstg

Rth(j-c)
Rth(j-a)

Ratings

SI-3051N/3091N SI-3121N/3151N SI-3241N

35 35 45

1.5

*2

18(With infinite heatsink)

1.5(Without heatsink, stand-alone operation)
–40 to +125
–30 to +100
–40 to +125

5.5

66.7(Without heatsink, stand-alone operation)

21

■Electrical Characteristics

Unit

V

V

V

mV

mV

mV/°C

dB

mA

A

*1: "A" may be indicated to the right of the Sanken logo.
*2: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)•IO=18(W).
*3: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.)
*4: IS1 is specified at –5(%) drop point of output voltage VO on the condition that VIN=VO+3V, IO=1A.
*5: A foldback type ov ercurrent protection circuit is built into the IC regulator. Therefore, av oid using it f or the f ollowing applications as it may cause

starting errors:
(1) Constant current load (2) Plus/minus power (3) Series power (4) VO adjustment by raising ground voltage

■Outline Drawing

a. Part Number
b. Lot Number

q GND
w VO
e VIN

0.95

±0.15

0.85

+0.2

10

±0.2

4.2

±0.2

2.8

±0.2

2.6

±0.15

qwe

3.2

±0.2

2

max.

0.5

16.9

±0.3

7.9

±0.2

4

±0.2

(13.5)

0.45

+0.2
–0.1

P3.4

±0.1

×2=6.8

–0.1

φ

a
b

Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 2.3g

●SI-3001N Series

Symbol

VIN

VO

Conditions

VDIF

Conditions

Conditions

∆VOLINE

Conditions

∆VOLOAD

Conditions

∆VO/∆Ta

Conditions
RREJ
Conditions

Iq

Conditions

IS1

Conditions

(unit:mm)

Ratings

SI-3051N SI-3091N SI-3121N SI-3151N SI-3241N

min. typ. max. min. typ. max. min. typ. max. min. typ. max. min. typ. max.

6

*3

30*210

*3

30*213

*3

30*216

*3

30*225

*3

40

*2

4.80 5.00 5.20 8.64 9.00 9.36 11.52 12.00 12.48 14.40 15.00 15.60 23.04 24.00 24.96

4.90 5.00 5.10 8.82 9.00 9.18 11.76 12.00 12.24 14.70 15.00 15.30 23.52 24.00 24.48
VIN=8V, IO=1.0A VIN=12V, IO=1.0A VIN=15V, IO=1.0A VIN=18V, IO=1.0A VIN=27V, IO=1.0A

0.5 0.5 0.5 0.5 0.5
IO≤1.0A

1.0 1.0 1.0 1.0 1.0
IO≤1.5A

10 30 18 48 24 64 30 90 48 128

VIN=6V to 15V, IO=1.0A VIN=10V to 20V, IO=1.0A VIN=13V to 25V, IO=1.0A VIN=16V to 27V, IO=1.0A VIN=25V to 38V, IO=1.0A

40 100 70 180 93 240 120 300 120 300

VIN=8V, IO=0 to 1.5A VIN=12V, IO=0 to 1.5A VIN=15V, IO=0 to 1.5A VIN=18V, IO=0 to 1.5A VIN=27V, IO=0 to 1.5A

±0.5 ±1.0 ±1.5 ±1.5 ±2.5

VIN=8V, IO=5mA,Tj=0 to 100°CVIN=12V, IO=5mA,Tj=0 to 100°CVIN=15V, IO=5mA,Tj=0 to 100°CVIN=18V, IO=5mA,Tj=0 to 100°CVIN=27V, IO=5mA,Tj=0 to 100°C

54 54 54 54 54

VIN=8V, f=100 to 120HZVIN=12V, f=100 to 120HZVIN=15V, f=100 to 120HZVIN=18V, f=100 to 120HZVIN=27V, f=100 to 120H

Z

510 510 510 510 510

VIN=8V, IO=0A VIN=12V, IO=0A VIN=15V, IO=0A VIN=18V, IO=0A VIN=27V, IO=0A

1.6 1.6 1.6 1.6 1.6
VIN=8V VIN=12V VIN=15V VIN=18V VIN=27V

(Ta=25°C unless otherwise specified)

Parameter

Input Voltage

Output V oltage

Dropout Voltage

Line Regulation

Load Regulation

Temperature Coefficient
of Output Voltage

Ripple Rejection

Quiescent Circuit
Current
Overcurrent Protection

StartingCurrent

*4,5

SI-3001N

*1

SI-3001NA