Datasheet

 2018 Microchip Technology Inc. DS20006021A-page 5
MIC5219
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Input Voltage (V
IN
) .......................................................................................................................... –20V to +20V
Power Dissipation (P
D
) .......................................................................................................................... Internally Limited
Operating Ratings ††
Supply Input Voltage (V
IN
) ......................................................................................................................... +2.5V to +12V
Enable Input Voltage (V
EN
) .................................................................................................................................0V to V
IN
† Notice: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical
specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power
dissipation is a function of the maximum junction temperature, T
J(MAX)
, the junction-to-ambient thermal resistance, θ
JA
,
and the ambient temperature, T
A
. The maximum allowable power dissipation at any ambient temperature is calculated
using: P
D(MAX)
= (T
J(MAX)
– T
A
) ÷ θ
JA
. Exceeding the maximum allowable power dissipation will result in excessive die
temperature, and the regulator will go into thermal shutdown. See Ta b le 4-1 and the Thermal Considerations section for
details.
†† Notice: The device is not guaranteed to function outside its operating rating.
ELECTRICAL CHARACTERISTICS
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
Output Voltage
V
OUT
–1 — 1 %
Variation from Nominal V
OUT
–2 — 2 %
Output Voltage
Temperature Coefficient
∆V
OUT
/∆T— 40 —ppm/°CNote 1
Line Regulation ∆V
OUT
/V
OUT
— 0.009 0.05
%/V V
IN
= V
OUT
+ 1V to 12V
——0.1
Load Regulation ∆V
OUT
/V
OUT
— 0.05 0.5
%
I
OUT
= 100 µA to 500 mA,
Note 2
——0.7
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.