SC2453ITSTR(2002) Ver la hoja de datos (PDF) - Semtech Corporation

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SC2453ITSTR
(Rev.:2002)

High Performance Quad Output Switching Regulator

Semtech Corporation 

SC2453

POWER MANAGEMENT

PRELIMINARY

Absolute Maximum Ratings

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified

in the Electrical Characteristics section is not implied.

Parameter

Maximum

Units

BST1, BST2 to PGND

35

V

VIN to PGND

30

V

PVCC, AVCC to PGND

7

V

PGND to AGND

±0.3

V

PH1 to BST1, PH2 to BST2

-6 to 0.3

V

GD1H to PH1, GD2H to PH2

7

V

GD1L, GD2L to PGND

7

V

ILIM1, ILIM2 to AGND

7

V

OSC, SYNC, POK, SS to AGND

BDI, BD3, BD4 to PGND

FB1, FB2, FB3, FB4, EO1, EO2 to AGND

GD1H, GD1L, GD2H, DG2L Source or Sink Current

Storage Temperature Range

7

V

7

V

7

V

1

A

-60 to +150

°C

Junction Temperature

-40 to +125

°C

Lead Temperature (Soldering) 10 Sec.

260

°C

Electrical Characteristics

Unless specified: TA = 25°C, VCC = 12V, fs = 600KHz, SYNC/SHDN = 5V

Parameter

Test Conditions

Power Supply

Quiescent Current

SS/SHDN = 0V

Operating Current

No load

AVCC

VIN > 5.5V

PVCC

VIN > 5.5V

Undervoltage Lockout

Start Threshold

UVLO Hysteresis

PWM Comparator

Delay to Output

Min

Typ

Max

Unit

4.5

4.5

4.312

µA

7

12

mA

5

5.5

V

5

5.5

V

4.4

4.488

V

0.1

V

70

nS

 2002 Semtech Corp.

2

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