CS5253-1 datasheet(2/9 Pages) CHERRY

2 / 9 page

Electrical Characteristics: 0¡C²TA ² 70¡C, 0¡C²TJ ² 150¡C, VSENSE = VOUT and VAdj = 0V unless otherwise specified.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Absolute Maximum Ratings

VPOWER Input Voltage.......................................................................................................................................................................6V

VCONTROL Input Voltage.................................................................................................................................................................13V

Operating Junction Temperature Range ................................................................................................................0¡C ² TJ ² 150¡C

Storage Temperature Range .....................................................................................................................................-65¡C to +150¡C

Lead Temperature Soldering

Reflow (SMD styles only) ......................................................................................60 sec. max above 183¡C, 230¡C peak

ESD Damage Threshold............................................................................................................................................................2kV

Reference Voltage

VCONTROL=2.75V to 12V,

1.237

1.250

1.263

VPOWER=2.05V to 5.5V, IOUT = 10mA to 3A

(-1%)

(+1%)

Line Regulation

VCONTROL = 2.5V to 12V,

.02

.20

VPOWER = 1.75V to 5.5V, IOUT = 10mA

Load Regulation

VCONTROL = 2.75V,

.04

.30

VPOWER = 2.05V, IOUT = 10mA to 3A,

with remote sense

Minimum Load Current

VCONTROL = 5V, VPOWER = 3.3V,

(Note 1)

ÆVOUT = +1%

Control Pin Current

VCONTROL = 2.75V, VPOWER = 2.05V, IOUT = 100mA

(Note 2)

VCONTROL = 2.75V, VPOWER = 2.05V, IOUT = 3A

120

Adjust Pin Current

VCONTROL =2.75V, VPOWER = 2.05V, IOUT = 10mA

120

µA

Current Limit

VCONTROL = 2.75V, VPOWER = 2.05V,

3.1

4.0

ÆVOUT = -1%

Short Circuit Current

VCONTROL = 2.75V, VPOWER = 2.05V, VOUT = 0V

2.6

3.5

Ripple Rejection

VCONTROL = VPOWER = 3.25V,

(Note 3)

VRIPPLE = 1VP-P@120Hz,

IOUT = 4A, CADJ = 0.1µF

Thermal Regulation

30ms Pulse, TA=25¡C

0.002

%/W

VCONTROL Dropout Voltage

VPOWER = 2.05V, IOUT = 100mA

0.90

1.15

(Minimum VCONTROL-VOUT)VPOWER = 2.05V, IOUT = 1A

1.00

1.15

(Note 4)

VPOWER = 2.05V, IOUT = 3A

1.05

1.30

VPOWER Dropout Voltage

VCONTROL = 2.75V, IOUT = 100mA

.05

.15

(Minimum VPOWER-VOUT)VCONTROL = 2.75V, IOUT = 1A

.15

.25

(Note 4)

VCONTROL = 2.75V, IOUT = 3A

.40

.60

RMS Output Noise

Freq = 10Hz to 10kHz, TA = 25¡C

0.003

%VOUT

Temperature Stability

0.5

Thermal Shutdown (Note 5)

150

180

210

¡C

Thermal Shutdown Hysteresis

¡C

VCONTROL Supply Only

VCONTROL = 13V, VPOWER not connected,

Output Current

VADJUST = VOUT = VSENSE = 0V

VPOWER Supply Only

VPOWER = 6V, VCONTROL not connected,

0.1

1.0

Output Current

VADJUST = VOUT = VSENSE = 0V

Note 1:

The minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor divider used to set

the output voltage is selected to meet the minimum load current requirement.

Note 2:

The VCONTROL pin current is the drive current required for the output transistor. This current will track output current with roughly a 1:100

ratio. The minimum value is equal to the quiescent current of the device.

Note 3:

This parameter is guaranteed by design and is not 100% production tested.

Note 4:

Dropout is defined as either the minimum control voltage, (VCONTROL) or minimum power voltage (VPOWER) to output voltage differential

required to maintain 1% regulation at a particular load current.

Note 5:

This parameter is guaranteed by design, but not parametrically tested in production. However, a 100% thermal shutdown functional test is

performed on each part.

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