L5953 データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

一致するリスト

L5953

Multiple switching voltage regulator

STMicroelectronics 

Block diagram and electrical specifications

1

Block diagram and electrical specifications

L5953

Figure 1. Block diagram

S1 W1 S2 W2

VDD-LIN VDD-SW

STCAP CT

RES

HSD1

HSD2

VOLTAGE WARNING

HSD1

HSD2

REC1

ST-BY LINEAR VOLTAGE

REGULATOR

3.3-5V/250mA

PWM

STEP DOWN

REGULATOR

2.5-10V/1A

FGND

VSTBY

ADJ

STRAP

DRAINOUT

VSPI

IRQ

SPI INTERFACE

REC2

LINEAR VOLTAGE

REGULATOR

1.5-3.3V/300mA

OSCILLATOR &

SYNC

VSW

GATEIN

GATEOUT

FB

COMP

SWGND

GND

Q

D

S

C

VLR FBLR VIN

SYNC

DGND

D01AU1330A

Table 2.

Symbol

Absolute maximum ratings

Parameter

VDD

VSPI

IO

Vinlog

RESR

Top

Tstg

Tj

DC operating supply voltage

Transient supply over voltage (250ms)

Supply voltage for SPI I/O

Voltage regulator output current

Input voltage (C, D, Q, S, SYNC)

Output capacitor series e.g. resistance

(linear reg.) (allowed range)

Operating temperature range

Storage temperature ranges

Operative junction temperature

Table 3.

Symbol

Thermal data

Parameter

Rthj-case Thermal resistance junction to case

Value

Unit

-0.6 to 30

V

50

V

-0.6 to 6

V

Internally limited

0 to 6

V

From 0.2 to 10

W

-40 to 85

°C

-55 to 150

°C

-40 to 150

°C

Value

1.7

Unit

°C/W

6/31

Share Link: