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LP3990 Datasheet(PDF) 6 Page - Texas Instruments

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Part # LP3990
Description  LP3990 150mA Linear Voltage Regulator for Digital Applications
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP3990 Datasheet(HTML) 6 Page - Texas Instruments

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LP3990
SNVS251I – MAY 2004 – REVISED MAY 2013
www.ti.com
Electrical Characteristics (continued)
Unless otherwise noted, VEN =950mV, VIN = VOUT + 1.0V, or 2.0V, whichever is higher. CIN = 1 µF, IOUT = 1 mA, COUT =0.47
µF.
Typical values and limits appearing in normal type apply for TJ = 27°C. Limits appearing in boldface type apply over the full
junction temperature range for operation,
−40 to +125°C.
(1)
Limit
Symbol
Parameter
Conditions
Typ
Units
Min
Max
Timing Characteristics
TON
Turn On Time (8)
To 95% Level
VOUT = 0.8
80
150
VIN(MIN) to 6.0V
VOUT = 1.5
105
200
µs
VOUT = 3.3
175
250
Transient
Line Transient Response |
δVOUT|
Trise = Tfall = 30µs
(8)δV
IN = 600mV
mV
8
16
Response
(pk - pk)
Load Transient Response |
δVOUT|
Trise = Tfall = 1µs
(8)I
OUT = 1mA to 150mA
55
100
mV
COUT = 1µF
(8)
This electrical specification is guaranteed by design.
Output Capacitor, Recommended Specifications
Limit
Symbol
Parameter
Conditions
Nom
Units
Min
Max
COUT
Output Capacitance
Capacitance(1)
1.0
0.7
µF
ESR
5
500
m
(1)
The full operating conditions for the application should be considered when selecting a suitable capacitor to ensure that the minimum
value of capacitance is always met. Recommended capacitor type is X7R. However, dependent on application, X5R, Y5V, and Z5U can
also be used. (See Application Hints)
6
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Copyright © 2004–2013, Texas Instruments Incorporated
Product Folder Links: LP3990


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