SC4510 查看數據表（PDF） - Semtech Corporation

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SC4510

High Performance Synchronous Buck Controller With Reference Tracking

Semtech Corporation 

SC4510

POWER MANAGEMENT

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. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device

reliability.

Parameter

Symbol

Maximum

Units

BST, GDH to PGND

-0.3 to 32 (steady state)

V

-0.3 to 40

(for < 10ns @ freq. < 500kHz)

PVCC, AVCC, VIN, VPN, GDL to PGND

-0.3 to 16

V

PGND to AGND

±0.3

V

CS+ to AGND

-0.3 to AVCC

V

COMP, IN-, REFIN, REFOUT, ROSC, SS/EN to AGND

-0.3 to 6

V

REFIN and REFOUT to AGND

0 to 3.0

V

GDH Source or Sink Current

+ 0.75

A

GDL Source or Sink Current

+1

A

Storage Temperature Range

-60 to +150

°C

Junction Temperature

-40 to +125

°C

Lead Temperature ( Soldering ) 10 Sec.

260

°C

ESD Rating ( Human Body Model )

Electrical Characteristics

Unless specified: TA = TJ = -40°C to +85°C, AVCC/PVCC = 12V, Fosc = 300 kHz, SS/EN = 5V

Parameter

Symbol

Test Conditions

2

Min

Typ

kV

Max Unit

Power Supply

Operating Current

No load on GDL and GDH

8

12

mA

Analog Supply Input

AVCC

VIN > 2.5V

4.75

16

V

Drive Supply Input

PVCC

VIN > 2.5V

4.75

16

V

Convertor Power Input

VIN

2.5

16

V

Undervoltage Lockout

Start Threshold

UVLO Hysteresis

Soft Start and Shudown

AVCCMIN

AVCCHYST

4.2

4.5

4.7

V

0.2

V

Charge Current

ISSCHG

Discharge Current

ISSDIS

Output Enable Threshold

VENTH

Shutdown Threshold

VSSTH

© 2004 Semtech Corp.

2

2

µA

1

µA

2.0

V

0.6

V

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