CS5253-1GDPR5 datasheet(3/10 Pages) ONSEMI

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CS5253−1

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ELECTRICAL CHARACTERISTICS (0°C ≤ TA ≤ 70°C; 0°C ≤ TJ ≤ 150°C; VSENSE = VOUT and VADJ = 0 V; unless otherwise specified.)

Characteristic

Unit

Max

Typ

Min

Test Conditions

CS5253−1

Ripple Rejection (Note 4)

VCONTROL = VPOWER = 3.25 V, VRIPPLE = 1.0 VP−P @

120 Hz, IOUT = 4.0 A, CADJ = 0.1 mF

−

Thermal Regulation

30 ms Pulse, TA = 25°C

−

0.002

−

%/W

VCONTROL Dropout Voltage

(Minimum VCONTROL − VOUT)

(Note 5)

VPOWER = 2.05 V, IOUT = 100 mA

VPOWER = 2.05 V, IOUT = 1.0 A

VPOWER = 2.05 V, IOUT = 3.0 A

−

0.90

1.00

1.05

1.15

1.30

VPOWER Dropout Voltage

(Minimum VPOWER − VOUT)

(Note 5)

VCONTROL = 2.75 V, IOUT = 100 mA

VCONTROL = 2.75 V, IOUT = 1.0 A

VCONTROL = 2.75 V, IOUT = 3.0 A

−

0.05

0.15

0.40

0.15

0.25

0.60

RMS Output Noise

Freq = 10 Hz to 10 kHz, TA = 25°C

−

0.003

−

%VO

Temperature Stability

−

0.5

−

Thermal Shutdown (Note 6)

−

150

180

210

°C

Thermal Shutdown Hysteresis

−

°C

VCONTROL Supply Only Output Current

VCONTROL = 13 V, VPOWER Not Connected,

VADJ = VOUT = VSENSE = 0 V

−

VPOWER Supply Only Output Current

VPOWER = 6.0 V, VCONTROL Not Connected,

VADJ = VOUT = VSENSE = 0 V

−

0.1

1.0

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

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

required to maintain 1.0% regulation at a particular load current.

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

is performed on each part.

PACKAGE PIN DESCRIPTION

PIN #

PIN SYMBOL

FUNCTION

VSENSE

This Kelvin sense pin allows for remote sensing of the output voltage at the load for improved regulation. It

is internally connected to the positive input of the voltage sensing error amplifier.

Adjust

This pin is connected to the low side of the internally trimmed 1.0% bandgap reference voltage and carries

a bias current of about 50 mA. A resistor divider from Adjust to VOUT and from Adjust to ground sets the

output voltage. Also, transient response can be improved by adding a small bypass capacitor from this pin

to ground.

VOUT

This pin is connected to the emitter of the power pass transistor and provides a regulated voltage capable

of sourcing 3.0 A of current.

VCONTROL

This is the supply voltage for the regulator control circuitry. For the device to regulate, this voltage should

be between 0.9 V and 1.3 V (depending on the output current) greater than the output voltage. The control

pin current will be about 1.0% of the output current.

VPOWER

This is the power input voltage. This pin is physically connected to the collector of the power pass transistor.

For the device to regulate, this voltage should be between 0.1 V and 0.6 V greater than the output voltage

depending on the output current. The output load current of 3.0 A is supplied through this pin.

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