SC4609EVB データシートの表示（PDF） - Semtech Corporation

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SC4609EVB

Low Input, MHz Operation, High Efficiency Synchronous Buck

Semtech Corporation 

SC4609

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

Supply Voltage (VCC)

PGND

Output Drivers (DRVH, DRVL) Currents

Continuous

Peak

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

6

V

±0.3

V

±0.25

A

±1.00

A

-0.3 to 6

V

BST

12

V

PHASE

-0.3 to 6

V

PHASE Pulse tpulse < 50ns

-2 to 7

V

Operating Ambient Temperature Range

TA

-40 to +85

°C

Storage Temperature Range

TSTG

-65 to +150

°C

Maximum Junction Temperature

TJ

+150

°C

Peak IR Reflow Temperature, 10 - 40s

TPKG

260

°C

ESD Rating (Human Body Model)

ESD

4

kV

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

Electrical Characteristics

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

Note: (1). Guaranteed by design.

Parameter

Test Conditions

Min

Typ

Max

Unit

Overall

Supply Voltage

Supply Current, Sleep

Supply Current, Operating

VCC Turn-on Threshold

VCC Turn-off Hysteresis

Error Amplifier

Input Voltage

(Internal Reference)

VSENSE Bias Current

Open Loop Gain (1)

Unity Gain Bandwidth (1)

FSET = 0V

VCC = 5.5V

TA = -40°C to 85°C

TA = 25°C

VCC = 2.7V - 5.5V, TA = 25°C

TA = -40°C to 85°C

VSENSE = 0.5V

VCOMP = 0.5 to 2.5V

0.495

0.4925

0.4925

5.5

V

10

15

µA

2

3.75

mA

2.7

V

350

mV

0.5

0.505

V

0.5

0.5075

0.5075

200

nA

90

dB

8

MHz

 2006 Semtech Corp.

2

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