SPX29501 Просмотр технического описания (PDF) - Exar Corporation
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SPX29501 Datasheet PDF : 9 Pages
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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
Output Leakage
Current
Output Low Voltage
Upper Threshold
Voltage
Lower Threshold
Voltage
Hysteresis
Enable Input
Input Logic Voltage
Low (OFF)
High (ON)
ENABLE Input Current
Regulator Output
Current in Shutdown
Thermal Resistance
0.01
1
2
220
300
400
40
60
25
75
95
140
15
SPX29501/02
0.8
2.4
100
600
750
0.6
2
4
10
500
2
60
2
60
µA
VOH=16V
♦
mV
Device set for 5V,VIN=4.5V, IOL=250µA
♦
mV
Device set for 5V, (Note 8)
♦
mV
Device set for 5V, (Note 8)
♦
mV
Device set for 5V, (Note 8)
V
(Note 10)
µA
µA
µA
°C/W
VEN=16V
♦
VEN=0.8V
♦
(Note 9)
♦
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).
Rev:B Nov 2008
SPX29500/01/02/03 5A Low Dropout Voltage Regulator
3
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