SC905A データシートの表示（PDF） - Semtech Corporation

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SC905A

CDMA Cellular Phone Power Management IC

Semtech Corporation 

SC905A

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

Notes:

(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

VIN

2.7

ON = 0V, HFPWR = 0V, CHPWR = 0V,

ISD

PGOOD = 0V

5.5

V

1

μA

Quiescent Supply Current

Supply Bypass Capacitor

Start-Up Time

Under-Voltage Lockout

ISU

ISTBY

CVCC

tSU

UVLO

Default Start-Up Mode

I2C, VREF Active, All Outputs Disabled

At Each Power Input Pin

CBP = 0.1μF

Descending, Hysteresis = 50mV

300

μA

30

60

μA

1

μF

25

ms

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

∆VOUT

ILIM

VOUT-HI

VOUT-LO

1.35V ≤ VOUT ≤ 2.90V, IOUT = 1mA,

-75

VOUT +0.35V ≤ VIN ≤ 5.5V

+75

mV

VCORE = 0V

350

900

mA

VCSEL - High

1.80

V

VCSEL - Low

1.35

V

© 2006 Semtech Corp.

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