SI-3033LSA datasheet(2/2 Pages) SANKEN

Part #	SI-3033LSA

Description	Surface-Mount, Low Current Consumption, Low Dropout Voltage

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Manufacturer	SANKEN [Sanken electric]

Direct Link	http://www.sanken-ele.co.jp/en

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71

ICs

SI-3000LSA Series

■External Dimensions (SOP8)

(Unit : mm)

0.995max.

0.10

1.27

0.4±0.1

0.15+0.1

5.1±0.4

1.27

8765

1234

–0.05

0.12 M

Pin Assignment

q VIN

w NC (Leave open)

e VIN

r VC

t GND

y GND

u VO

i VO

Plastic Mold Package Type

Flammability: UL94V-0

Product Mass: Approx. 0.1g

■Block Diagram

■Typical Connection Diagram

■Reference Data

CO: Output capacitor (22 µF or larger)

CIN:Input capacitor (10 µF)

This capacitor is required in the case of an inductive input line or long

wiring.

Tantalum capacitors are recommended for CIN and CO, particularly at

low temperatures.

* Leave pin 2 open.

TSD

+

–

VIN

NC

VIN

VC

VO

GND

1

2

3

4

8

7

6

5

1

2

3

4

8

7

6

5

+

VIN

VC

VO

CIN

CO

GND

+

PCB Copper Laminate Area vs. Junction to

Ambient Air Thermal Resistance

Allowable Output Current

(vs. VIN-VOUT Voltage Difference)

VIN-IO max

The inner frame stage, on which the PTr is mounted,

is directly connected to the VOUT pin.

Therefore, enlarging the copper laminate area

around the VOUT pin is really effective for a heat

radiation.

150

140

130

120

110

100

90

80

70

100

1000

5000

Copper Laminate Area (mm2)

PCB (glass-epoxy, 40

×40mm)

160mm (40

×40) mm

1.2

1.0

0.8

0.6

0.4

0.2

0

1234

VIN-VOUT Voltage Difference (V)

Tj = 120

°C (20% derating of 150°C)

Ta=25

°C

Ta=85

°C

j-a

=100

°C/W

θ

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