MIC5200 Datasheet, PDF (3/6 Pages) Micrel Semiconductor – 100mA Low-Dropout Voltage Regulator Preliminary Information

MIC5200
Micrel
Electrical Characteristics
Limits in standard typeface are for T_J = 25°C and limits in boldface apply over the junction temperature range of –40°C to +125°C.
Unless otherwise specified, V_IN = V_OUT + 1V, I_L = 1mA, C_L = 3.3µF, and V_ENABLE ≥ 2.0V
Symbol Parameter
Conditions
Min Typical Max Units
V_O
Output Voltage
Accuracy
Variation from specified V_OUT
–1
1
%
–2
2
∆V_O
Output Voltage
∆T
Temperature Coef.
(Note 2)
40
150 ppm/°C
∆V_O
V_IN
∆V_O
V_OUT
Line Regulation
Load Regulation
V_IN = V_OUT + 1 V to 26V
I_L = 0.1mA to 100mA (Note 3)
0.004 0.10
%
0.40
0.04 0.16
%
0.30
V_IN – V_O
Dropout Voltage
(Note 4)
I_GND
I_GND
Quiescent Current
Ground Pin Current
PSRR
I_GNDDO
I_LIMIT
∆V_O
∆P_D
e_n
Ripple Rejection
Ground Pin
Current at Dropout
Current Limit
Thermal Regulation
Output Noise
I_L = 100µA
I_L = 20mA
I_L = 30mA
I_L = 50mA
I_L = 100mA
V_ENABLE ≤ 0.7V (Shutdown)
V_ENABLE ≥ 2.0V, I_L = 100µA
I_L = 20mA
I_L = 30mA
I_L = 50mA
I_L = 100mA
V_IN = 0.5V less than specified V_OUT
I_L = 100µA (Note 5)
V_OUT = 0V
(Note 6)
17
mV
130
150
190
230 350
0.01 10
µA
130
µA
3
270 350
330
500
1000 1500
70
dB
270 330
µA
100 250
0.05
mA
%/W
100
µV
ENABLE Input
Input Voltage Level
V_IL
Logic Low
Logic High
OFF
ON
0.7
V
2.0
I_IL
ENABLE Input Current
I_IH
V_IL ≤ 0.7V
V_IH ≥ 2.0V
0.01
1
µA
15
50
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
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 rated operating conditions. 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_(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. The θ_JC of the MIC5200-xxBS is 15°C/W and θ_JA for the MIC5200BM is 160°C/W
mounted on a PC board (see “Thermal Considerations” section for further details).
Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation
in the load range from 0.1mA to 100mA. Changes in output voltage due to heating effects are covered by the thermal regulation
specification.
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.
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.
Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied, excluding
load or line regulation effects. Specifications are for a 100mA load pulse at V_IN = 26V for t = 10ms.
3-125
July 1998