SC4607 データシートの表示（PDF） - Semtech Corporation

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SC4607

Very Low Input, MHz Operation,High Efficiency Synchronous Buck

Semtech Corporation 

SC4607

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 (DRVH, DRVL) Currents

Continuous

Peak

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

7

V

+/-0.25

A

+/-1.00

A

-0.3 to 7

V

BST

13

V

PHASE

-0.3 to 7.5

V

PHASE Pulse tpulse < 50ns

-2 to 7.5

V

Operating Ambient Temperature Range

TA

-40 to +85

°C

Storage Temperature Range

TSTG

-65 to +150

°C

Junction Temperature

TJ

-55 to +150

°C

Lead Temperature (Soldering) 10 Sec.

TLEAD

+300

°C

ESD Rating (Human Body Model)

ESD

4

kV

All voltages with respect to GND. 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

Parameter

Test Conditions

Min

Typ

Max

Unit

Overall

Supply Voltage

5.5

V

Supply Current, Sleep

FS/SYNC = 0V

10

15

µA

Supply Current, Operating

VCC Turn-on Threshold

VCC Turn-off Hysteresis

VCC = 5.5V

TA = 25°C

TA = -40°C to 85°C

2

3.5

mA

2.05

2.2

V

2.25

100

mV

Error Amplifier

VSENSE Input Voltage

(Internal Reference)

VSENSE Bias Current

TA = 25°C

0.495

0.5

0.505

V

VCC = 2.25V - 5.5V, TA = 25°C

0.4925

0.5

0.5075

TA = -40°C to 85°C

0.4915

0.5085

200

nA

Open Loop Gain (1)

Unity Gain Bandwidth (1)

VCOMP = 0.5 to 2.5V

80

90

8

dB

MHz

Slew Rate (1)

 2005 Semtech Corp.

2.4

V/µs

2

www.semtech.com

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