SPX29302AT5SLASHTR datasheet(2/7 Pages) SIPEX

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Date: 5/25/04

SPX29302A 3Amp LDO Low Dropout Voltage Regulator

ABSOLUTE MAXIMUM RATINGS

Lead Temperature (soldering, 5 seconds)

................260°C

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

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

Input Voltage (Note 7) .................................................... 16V

(Note 1) at VIN=VOUT + 1V and IOUT = 10mA, CIN = 6.8µF, COUT = 10µF, Tj = 25°C, unless otherwise specified. The Boldface

applies over the junction temperature range.

SPX29302A

PARAMETER

CONDITIONS

TYP

MIN

MAX

UNITS

Line Regulation

IOUT=10mA,(VOUT+1V) ≤ VIN ≤ 16V

0.06

0.5

Load Regulation

VIN=VOUT+5V, 10mA≤ IOUT ≤ IFL (Note 2)

0.2

∆V/∆TVOUT Temp Coefficient (Note 6)

100

ppm/

°C

Dropout Voltage, except

IOUT=100mA

175

1.8V, (Note 3)

IOUT=1.5A

250

IOUT=3.0A

370

600

Ground Current

IOUT=1.5A, VIN=VOUT+1V

(Note 5)

IOUT=3.0A

Ground Pin Current

VIN=0.5V less than specified VOUT,

1.7

at Dropout

IOUT=10mA

Current Limit

VOUT=0V (Note 4)

4.0

5.0

Output Noise Voltage

CL=10µF

400

µVRMS

(10Hz to 100kHz)

IL=100mA

CL=33µF

260

Reference Voltage

1.240

1.228

1.252

VMAX

1.215

1.265

Reference Voltage

(Note 8)

1.203

1.277

Adjust Pin Bias Current

120

Reference Voltage

(Note 7)

ppm/

°C

Temp. Coeff.

Adjust Pin Bias

0.1

nA/

°C

Current Temp. Coeff.

ENABLE Input

∆Input Logic Voltage

Low (OFF)

VIN<10V

0.8

High (ON)

2.4

ENABLE Input Pin

VEN=16V

100

600

µA

750

VEN=0.8V

µA

Regulator Output

(Note 10)

500

µA

Current in Shutdown

Thermal Resistance

TO-220 Junction to Case, at Tab

°C/W

TO-220 Junction to Ambient

TO-263 Junction to Case, at Tab

TO-263 Junction to Ambient

NOTES:

Note 1: Maximum positive supply voltage of 20V must be of limited duration (<100msecond) < 1% and duty cycle of less than 1%. The maximum continuous

supply voltage is 16V.

Note 2: Full load current (IFL) is defined as 3.0A.

Note 3: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value.

Note 4: VIN = VOUT (NOMINAL) +1V. For example, use VIN = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise.

Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground current.

Note 6: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range

Note 7: Thermal regulation is defined as the change in output voltage at time T after a change in power dissipation is applied, excluding load / line regulation effects.

Specifications for a 200mA load pulse as VIN = 16V (a 4W pulse) for t = 10ms.

Note 8: VREF≤ VOUT ≤ (VIN-1), 2.3V≤VIN ≤ 16V, 10mA ≤ IL ≤ IFL, Tj ≤ Tjmax.

Note 9: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured 6V input. To

express these thresholds in terms of output voltage change, multiply the error amplifier gain = VOUT/VREF = (R1 + R2)/R2. For example, at a programmable

output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of

VOUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.

Note 10: VEN ≤ 0.8V and VIN ≤ 16V, VOUT = 0.

ELECTRICAL CHARACTERISTICS

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