S1335 datasheet(21/67 Pages) SII

Part #	S1335

Description	HIGH RIPPLE-REJECTION SOFT-START FUNCTION

PDF	67 Pages

Scroll/Zoom	100%

Manufacturer	SII [Seiko Instruments Inc]

Direct Link	http://www.sii.co.jp

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HIGH RIPPLE-REJECTION SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.1.3_00

S-1335 Series

Seiko Instruments Inc.

Power Dissipation of HSNT-4 (1010) (Reference)

Power dissipation of package differs depending on the mounting conditions.

Consider the power dissipation characteristics under the following conditions as reference.

[Mounted board]

(1) Board size:

40 mm

× 40 mm × t0.8 mm

(2) Board material:

Glass epoxy resin (four layers)

(3) Wiring ratio:

50%

(4) Test conditions:

When mounted on board (wind speed: 0 m/s)

(5) Land pattern:

Refer to the recommended land pattern (drawing code: PL004-A-L-SD)

100

150

Ambient temperature (Ta) [

°C]

400

200

600

1000

800

1200

Figure 13 Power Dissipation of Package (When Mounted on Board)

Table 19

Condition

Power Dissipation (Reference)

Thermal Resistance Value (

θj－a)

HSNT-4 (1010) (When mounted on board)

870 mW

115°C/W

S1335 Datasheet(PDF) 21 Page - Seiko Instruments Inc