SC905 查看數據表（PDF） - Semtech Corporation

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SC905

CDMA Cellular Phone Power Management IC

Semtech Corporation 

SC905

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

Input Supply Voltage

VIN

-0.3 to +7

V

Digital Input Voltage

VDIG

-0.3 to VIN+0.3

V

Operating Ambient Temperature Range

TA

-40 to +85

°C

Operating Junction Temperature Range

TJ

-40 to +125

°C

Peak IR Reflow Temperature

TLEAD

260

°C

Storage Temperature

TSTG

-60 to +150

°C

Thermal Resistance Junction to Ambient(1)

θJA

26

°C/W

ESD Protection Level(2)

ESD

2

kV

(1) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad as per JESD51 standards.

(2) Tested according to JEDEC standard JESD22-A114-B.

Electrical Characteristics

Unless otherwise noted VIN = 3.7V, TA = -40 to +85°C. Typical values are at TA = +25°C.

Parameter

Symbol

Condition

Min Typ Max

Units

General

Supply Voltage

Shutdown Current

Quiescent Supply Current

Supply Bypass Capacitor

Start-Up Time

Under-Voltage Lockout

VIN

2.7

5.5

V

ISD

ON = 0V, HFPWR = 0V, PGOOD = 0V

1

μA

ISU

Default Start-up Mode

ISTBY

I2C, VREF Active, All Outputs Disabled

300

μA

30

60

μA

CVCC

At Each Power Input Pin

1

μF

tSU

CBP = 0.1μF

25

ms

UVLO

Descending, Hysteresis = 50mV

2.5

V

Over-Temperature

OT

Hysteresis = 20°C

160

°C

Digital Inputs

Digital Input Voltage(1)

VIL

VIH

Digital Input Current

IDIG

Digital Outputs

1.25

Logic Level High or Low

-0.2

0.4

V

V

0.2

μA

Digital Output Voltage(2)

VOL

VOH

LDO Regulator (CORE) - 300mA

ISINK = 1.2mA

ISOURCE = 0.5mA, VPAD ≥ 1.8V

2

10

%VPAD

90

98

%VPAD

Output Voltage Accuracy(3)

Current Limit

Default At Start-Up: ON

© 2006 Semtech Corp.

∆VOUT

ILIM

VOUT-HI

VOUT-LO

1.35V ≤ VOUT ≤ 2.90V, IOUT = 1mA,

VOUT +0.35V ≤ VIN ≤ 5.5V

VCORE = 0V

VCSEL - High

VCSEL - Low

2

-75

+75

mV

350

900

mA

1.80

V

1.35

V

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