SPX29501 datasheet(3/11 Pages) SIPEX

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Rev:A Date: 3/8/04

SPX29500/01/02/03 5A Low Dropout Voltage Regulator

ELECTRICAL CHARACTERISTICS: Continued

Specifications are at VIN = VOUT + 1V and IOUT = 10mA, CIN = 6.8µF, COUT = 22µF, TA = 25°C, unless otherwise specified.

The

♦ denotes the specifications which apply over the full operating temperature range, unless otherwise specified.

PARAMETER

MIN

TYP

MAX

UNITS

CONDITIONS

Flag Output (Error Comparator)

SPX29501/03

Output Leakage

0.01

µAVOH=16V

Current

♦

Output Low Voltage

220

300

Device set for 5V,VIN=4.5V, IOL=250µA

400

♦

Upper Threshold

Device set for 5V, (Note 8)

Voltage

♦

Lower Threshold

Device set for 5V, (Note 8)

Voltage

140

♦

Hysteresis

Device set for 5V, (Note 8)

Enable Input

SPX29501/02

Input Logic Voltage

Low (OFF)

0.8

(Note 10)

High (ON)

2.4

ENABLE Input Current

100

600

µAVEN=16V

750

♦

0.6

µAVEN=0.8V

♦

Regulator Output

µA

(Note 9)

Current in Shutdown

500

♦

Thermal Resistance

°C/W

TO-220 Junction to Case, at Tab

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 (<100ms) and duty cycle of less than 1%. The

maximum continuous supply voltage is 16V.

Note 2: Full load current (IFL) is defined as 5A.

Note 3: VIN = VOUT (NOMINAL) +1V. For example, use VIN = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize

temperature rise.

Note 4 Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current

plus the ground pin current.

Note 5: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.

Note 6: 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 = 20V (a 4W pulse) for t = 10ms.

Note 7: VREF≤ VOUT ≤ (VIN-1), 2.3V≤VIN ≤ 16V, 10mA ≤ IL ≤ IFL, Tj < Tjmax.

Note 8: 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 = 383mV. 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 9: VEN ≤ 0.4V and VIN ≤ 16V, VOUT = 0.

Note 10: Measured with IOUT = IOUT MIN (10mA).

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