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SPX29150 Datasheet(PDF) 3 Page - Sipex Corporation

No. de Pieza. SPX29150
Descripción  1.5A Low Dropout Voltage Regulator
Descarga  13 Pages
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Fabricante  SIPEX [Sipex Corporation]
Página de inicio  http://www.sipex.com
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SPX29150 Datasheet(HTML) 3 Page - Sipex Corporation

 
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3
Rev A 8/5/06
SP2950/5/52/53 .5A Low Dropout voltage Regulator
© Copyright 2006 Sipex Corporation
NOTES:
Note 1: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value.
Note 2: Vin = vout (NOMINAL) +1V. For example, use Vin = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise.
Note 3: 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 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line
regulation effects.
Note 5: 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. Thresholds
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 6: Ven ≤ 0.8V and Vin ≤ 16V, Vout = 0.
Note 7: Maximum positive supply voltage of 20V must be of limited duration (<100m_) < 1%. The maximum continuous supply voltage is 16V.
Note 8: Vref ≤ Vout ≤ (Vin-1), 2.5V≤Vin ≤ 16V, 10mA ≤ Il ≤ Ifl, Tj < Tjmax.
Reference
Thermal
shutdown
EN
IN
OUT
ADJ
GND
O.v
I
LIMIT
28v
R1*
R2*
1.180v
1.240v
+
+
-
-
FLAG
BLOCK DIAGRAM
ELECTRICAL CHARACTERISTICS CONT'D
PARAMETER
CONDITIONS
Typ
SPX29150/51
Min
Max
Units
Upper Threshold
voltage
Device set for 5V (Note 5)
60
40
25
mV
Lower Threshold
voltage
Device set for 5V (Note 5)
75
95
140
mV
Hysteresis
Device set for 5V (Note 5)
5
mV
ENABLE input
SPX29151/52
Input Logic Voltage
Low (OFF)
High (ON)
vin < 10V
2.4V
0.8
v
Enable Input Pin Input
Current
ven=6v
00
600
750
µA
ven=0.8v
1
2
µA
Regulator output Cur-
rent in Shutdown
(Note 6)
0
500
µA
Thermal Resistance
TO-220 Junction to Case, at Tab
TO-220 Junction to Ambient
TO-263 Junction to Case, at Tab
TO-263 Junction to Ambient
3
30
3
32
°C/W


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