STW41415 datasheet(9/27 Pages) STMICROELECTRONICS

Part #	STW41415

Description	Single Coil Dual Output Step Down DC/DC Converter for Digital Base Band and Multimedia Processor Supply

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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STw4141

2 Electrical Characteristics

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2.4

Dynamic electrical characteristics

Characteristics measured over recommended operating conditions unless otherwise is noted.

All typical values are referred to TA = 25°C, PVDD = 3.6V, VDD = 3.6V.

Auto functions

VAUTOH

Voltage Selection

Threshold High

0.9

V

VAUTOL

Voltage Selection

Threshold Low

0.4

V

State functions

VSTATEH

Voltage Selection

Threshold High

RLmax = 100k, CLmax = 10pF

0.7VOUT1

V

VSTATEL

Voltage Selection

Threshold Low

RLmax = 100k, CLmax = 10pF

0.3 VOUT1

V

1.

. This condition must always be valid.

2.

Output voltage accuracy excludes line and load transients

Table 6.

Dynamic electrical characteristics

Symbol

Parameter

Test Conditions

Min.

Typ

Max.

Unit

fSW

Switching frequency

900

kHz

fSYNC

Sync mode frequency

600

1500

kHz

Ts

Settling time (soft start)

400

µs

TS2

Settling time

VOUT2 (reduced)/VOUT2

VSEL change from GND to VDD

80

µs

Table 5.

DC electrical characteristics

Symbol

Parameter

Test Conditions

Min.

Typ

Max.

Unit

VOUT1

VOUT2

≥

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