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| LP38798 Datasheet, PDF (5/23 Pages) Texas Instruments – LP38798-ADJ High PSRR, Ultra Low Noise, 800 mA Linear Voltage Regulator for RF/Analog Circuits | |||
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LP38798
www.ti.com
SNOSCT6A â MARCH 2013 â REVISED MAY 2013
ELECTRICAL CHARACTERISTICS (continued)
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the operating junction temperature (TJ)
range of â40°C to +125°C. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for
reference purposes only. Minimum and Maximum limits are specified through test, design, or statistical correlation. Unless
otherwise stated the following conditions apply: VIN = 5.5 V, VSET = 5.0 V, CCP= 10 nF X7R, CIN = 10 μF 50 m⦠Tantalum,
COUT = 10 μF X7R MLCC, IOUT = 10 mA, and TJ = 25°C.
Symbol
Parameter
Conditions
Min
Typical
Max
Units
VIN = 3.0 V, VOUT = 1.2 V
COUT = 1 µF X7R
BW = 10 Hz to 100 kHz
-
4.96
-
VIN = 3.0 V, VOUT = 1.2 V
BW = 10 Hz to 100 kHz
-
5.21
-
VIN = 3.0 V, VOUT = 1.2 V
eN
Output Noise Voltage
(RMS)
BW = 10 Hz to 10 MHz
VIN = 6.0 V, VOUT = 5.0 V
COUT = 1 µF X7R
BW = 10 Hz to 100 kHz
-
11.53
-
µV(RMS)
-
5.38
-
VIN = 6.0 V, VOUT = 5.0 V
BW = 10 Hz to 100 kHz
-
5.43
-
VIN = 6.0 V, VOUT = 5.0 V
BW = 10 Hz to 10 MHz
-
11.58
-
ENABLE INPUT
VEN(ON)
Enable ON Threshold
Voltage
VEN rising from 500 mV until Output is
ON
1.14
1.24
1.34
V
ÎVEN
Enable Threshold Voltage
Hysteresis
VEN Falling from VEN(ON)
-
110
-
mV
IEN(IL)
IEN(IH)
VEN(CLAMP)
EN Pin Pull-up Current
EN Pin Pull-up Current
Enable Pin Clamp
Voltage
VEN = 500 mV
VEN = 2.0 V
EN pin = Open
-
2
3.0
µA
-
2
3.0
µA
-
5.0
-
V
Thermal Shutdown
TSD
Thermal Shutdown
Junction Temperature (TJ) Rising
-
ÎTSD
Thermal Shutdown
Hysteresis
Junction Temperature (TJ) Falling from
TSD
-
170
-
°C
12
-
Copyright © 2013, Texas Instruments Incorporated
5
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