SPX29300 datasheet(3/11 Pages) SIPEX

部件名	SPX29300

功能描述	3A High Current, Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response Time

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制造商	SIPEX [Sipex Corporation]

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Date: 5/25/04

SPX29300/01/02/03 3A Low Dropout Voltage Regulator

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

over the junction temperature range. Adjustable versions are set to 5.0V.

PARAMETER

CONDITIONS

TYP

MIN

MAX

UNITS

FLAG OUTPUT (ERROR COMPARATOR)

SPX29301/03

Output Leakage

VOH=16V

0.01

1

µA

Current

2

Output Low Voltage

Device set for 5V,VIN=4.5V, IOL=250µA

220

300

mV

400

Upper Threshold

Device set for 5V, (Note 9)

60

40

mV

Voltage

25

Lower Threshold

Device set for 5V, (Note 9)

75

95

mV

Voltage

140

Hysteresis

Device set for 5V, (Note 9)

15

mV

ENABLE Input

SPX29301/02

Input Logic Voltage

Low (OFF)

VIN<10V

0.8

V

High (ON)

2.4

ENABLE Input Pin

VEN=16V

100

600

µA

750

VEN=0.8V

1

µA

2

Regulator Output

(Note 10)

10

500

µA

Current in Shutdown

Thermal Resistance

TO-200 Junction to Case, at Tab

3

°C/W

TO-220 Junction to Ambient

60

TO-263 Junction to Case, at Tab

3

TO-263 Junction to Ambient

60

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 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 = 20V (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.

Reference

Thermal

Shutdown

EN

IN

OUT

ADJ

GND

O.V

I

LIMIT

28V

R1*

R2*

1.180V

1.240V

+

--

FLAG

BLOCK DIAGRAM

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SPX29300 数据表(PDF) 3 Page - Sipex Corporation

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