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SC4608EVB

Low Input, MHz Operation, High Efficiency Synchronous Buck

Semtech Corporation 

SC4608

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.

Parameter

Symbol

Maximum

Units

Analog Supply Voltage (AVDD)

Power Supply Voltage (PVDD)

PGND

Output Drivers (DRVH, DRVL) Currents

Continuous

Peak

Inputs (VSENSE, COMP, FSET, ISET, SS)

BST

PHASE

PHASE Pulse tpulse < 50ns

Storage Temperature Range

Maximum Junction Temperature

Peak IR Reflow Temperature, 10 - 40s

ESD Rating (Human Body Model)

6

V

AVDD+/- 0.3

V

±0.3

V

±0.25

A

±1.00

A

-0.3 to AVDD +0.3

V

PVDD +6

V

-0.3 to PVDD +0.3

V

-2 to PVDD +1

V

TSTG

-65 to +150

°C

TJ

+150

°C

TPKG

260

°C

ESD

2

kV

All voltages with respect to AGND. Currents are positive into, negative out of the specified terminal.

Electrical Characteristics

Unless otherwise specified, AVDD = 3.3V, AVDD = PVDD , CT = 270pF, TA = -40°C to 85°C, TA=TJ

Parameter

Test Conditions

Min

Overall

Supply Voltage

Supply Current, Sleep

EN = 0V

Supply Current, Operating

AVDD Turn-on Threshold

AVDD Turn-off Hysteresis

Error Amplifier

AVDD = 5.5V

TA = -40°C to 85°C

275

FB Voltage

(Internal Reference)

VSENSE Bias Current

Open Loop Gain (1)

Unity Gain Bandwidth (1)

AVDD = 2.7V to 5.5V,

TA = -40°C to 85°C

AVDD = 2.7V to 5.5V, TA = 25°C

TA = -40°C to 85°C

TA = 25°C

VSENSE = 0.5V

VCOMP = 0.5 to 2.5V

0.49

0.493

0.492

0.495

 2006 Semtech Corp.

2

Typ

Max

Unit

5.5

V

0.1

1

µA

2

3.75

mA

2.7

V

350

425

mV

0.5

0.51

V

0.5

0.507

0.5

0.508

0.5

0.505

200

nA

90

dB

8

MHz

www.semtech.com

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