Datasheet

 2018 Microchip Technology Inc. DS20006021A-page 7
MIC5219
ENABLE Input
Enable Input Logic-Low
Voltage
V
ENL
——0.4
V
V
EN
= logic low (regulator
shutdown)
——0.18
2.0 — — V
V
EN
= logic high (regulator
enabled)
Enable Input Current
I
ENL
—0.01 –1
μA
V
ENL
≤ 0.4V
— 0.01 –2 V
ENL
≤ 0.18V
I
ENH
2520
μAV
ENH
≥ 2.0V
—— 25
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: Unless otherwise indicated, V
IN
= V
OUT
+ 1.0V; C
OUT
= 4.7 μF, I
OUT
= 100 μA;
T
J
= +25°C, bold values indicate –40°C ≤ T
J
≤ +125°C.
Parameters Sym. Min. Typ. Max. Units Conditions
Note 1: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
2: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are
tested for load regulation in the load range from 100 μA to 500 mA. Changes in output voltage due to
heating effects are covered by the thermal regulation specification.
3: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below
its nominal value measured at 1V differential.
4: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current
drawn from the supply is the sum of the load current plus the ground pin current.
5: V
EN
is the voltage externally applied to devices with the EN (enable) input pin.
6: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipa-
tion is applied, excluding load or line regulation effects. Specifications are for a 500 mA load pulse at
V
IN
= 12V for t = 10 ms.
7: C
BYP
is an optional, external bypass capacitor connected to devices with a BYP (bypass) or ADJ (adjust)
pin.