SC4601EVB データシートの表示（PDF） - Semtech Corporation

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SC4601EVB

Low Input, High Efficiency Synchronous, Step Down Controller

Semtech Corporation 

SC4601

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)

Output Drivers (PDRV, NDRV) Currents Continuous

Inputs (VSENSE, COMP, SYNC/SLEEP, FS, ISET)

Phase

Phase Pulse tpulse < 50ns

7

V

±0.25

A

-0.3 to 7

V

-0.3 to 7

V

-2 to 7

V

Operating Ambient Temperature Range

Storage Temperature Range

Maximum Junction Temperature

Thermal Impedance Junction to Case

Thermal Impedance Junction to Ambient

Lead Temperature (Soldering) 10 Sec.

ESD Rating (Human Body Model)

TA

TSTG

TJ

θJC

θJA

TLEAD

ESD

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

-40 to +85

-65 to +150

+150

41.9

206

+300

2

°C

°C

°C

°C/W

°C/W

°C

kV

Electrical Characteristics

Unless otherwise specified, VCC = 3.3V, RT = 59Kohm, TA = -40°C to 85°C, TA = TJ.

Parameter

Test Conditions

Min

Typ

Max

Unit

Overall

Supply Voltage

Supply Current, Sleep

Supply Current, Operating

VSYNC/SLEEP = 0V

2.75

5.5

V

10

15

µA

1.5

3

mA

VCC Turn-on Threshold

2.55

2.75

V

VCC Turn-off Hysteresis

150

mV

Error Amplifier

Internal Reference

TA = 25°C

VCC = 2.75V to 5.5V, TA = 25°C

Temperature

0.792

0.8

0.808

V

0.788

0.8

0.812

0.786

0.8

0.814

VSENSE Bias Current

25

nA

Open Loop Gain (1)

Unity Gain Bandwidth (1)

VCOMP = 0.4V to 1.8V

70

80

4

dB

MHz

Slew Rate (1)

2

V/µs

 2006 Semtech Corp.

2

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