SP2996B datasheet(2/9 Pages) EXAR

2 / 9 page

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Rev. 2.0.0

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of

the device at these ratings or any other above those

indicated in the operation sections of the specifications

below is not implied. Exposure to absolute maximum

rating conditions for extended periods of time may affect

reliability.

Supply Voltage.......................................... -0.3V to 7.0V

Junction Temperature Range..................-40°C to +125°C

Storage Temperature .............................. -65°C to 150°C

OPERATING RATINGS

Operating Temperature Range................. -40°C to +85°C

Thermal Resistance θJA .....................................160°C/W

Thermal Resistance θJC ...................................... 40°C/W

ELECTRICAL SPECIFICATIONS

Specifications with standard type are for an Operating Ambient Temperature of TA = 25°C only; limits applying over the full

Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test,

design, or statistical correlation. Typical values represent the most likely parametric norm at TA = 25°C, and are provided

for reference purposes only. Unless otherwise indicated, VIN = 2.5V, VCNTL = 3.3V, VREF = 0.5xVIN, COUT = 10µF (ceramic),

TA= 25°C.

Parameter

Min.

Typ.

Max.

Units

Conditions

Input Voltage Range (DDR 1/2)

VIN

1.6

2.5/1.8

(note 4)

Keep VCNTL≥VIN on operation power on

and power off sequences

Input Voltage Range (DDR 1/2)

VCNTL

3.0

3.3

3.6

(note 4)

IOUT = 0mA

Output Voltage VOUT

VREF

IOUT = 0mA

Output Offset Voltage VOS

-20

+20

No load

Load Regulation (DDR 1/2) ∆VLOR

IOUT = 0.1mA to +2A

IOUT = 0.1mA to -2A

Quiescent Current IQ

µA

VREF < 0.2V, VOUT = OFF

Operating Current of VCNTL, ICNTL

No load

Bias Current of VREF

µA

VREF = 1.25V

Current Limit IIL

2.2

4.5

(note 3)

Thermal Protection

Thermal Shutdown Temperature

TSD

125

150

°C

(note 4)

3.3V ≤ VCNTL ≤ 5V, guaranteed by design

Thermal Shutdown Hysteresis

°C

Guaranteed by design

Shutdown Specifications

Shutdown Threshold VTRIGGER

0.8

Output ON

VREF = 0V

1.25V

0.2

Output OFF

VREF = 1.25V

Note 1: VOS offset is the voltage measurement defined as VOUT subtracted from VREF.

Note 2: Load regulation is measured at constant junction temperature, using pulse testing with a low ON time.

Note 3: Current limit is measured by pulsing a short time.

Note 4: In order to safely operate your system, VCNTL must be > VIN.

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