MIC39500_05 Datasheet, PDF (3/10 Pages) Micrel Semiconductor – 5A μCap Low-Voltage Low-Dropout Regulator

MIC39500/39501
Absolute Maximum Ratings (Note 1)
Supply Voltage (V_IN) .......................................–20V to +20V
Enable Voltage (V_EN) .................................................. +20V
Storage Temperature (T_S) ........................ –65°C to +150°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
ESD, Note 3
Micrel
Operating Ratings (Note 2)
Supply Voltage (V_IN)................................... +2.25V to +16V
Enable Voltage (V_EN) .................................................. +16V
Maximum Power Dissipation (P_D(max)) ..................... Note 4
Junction Temperature (T_J) ........................ –40°C to +125°C
Package Thermal Resistance
TO-263 (θ_JC) ......................................................... 2°C/W
TO-220 (θ_JC) ......................................................... 2°C/W
Electrical Characteristics
T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted
Symbol
Parameter
Condition
V_OUT
∆V_OUT/∆T
ppm/°C
Output Voltage
Line Regulation
Load Regulation
Output Voltage Temp. Coefficient,
Note 5
10mA
10mA ≤ I_OUT ≤ 5A, V_OUT + 1V ≤ V_IN ≤ 16V
I_OUT = 10mA, V_OUT + 1V ≤ V_IN ≤ 16V
V_IN = V_OUT + 1V, 10mA ≤ I_OUT ≤ 5A
V_DO
Dropout Voltage, Note 6
I_GND
I_GND(do)
I_OUT(lim)
e_n
µV(rms)
Ground Current, Note 7
Dropout Ground Pin Current
Current Limit
Output Noise Voltage
I_OUT = 250mA, ∆V_OUT = –2%
I_OUT = 2.5A, ∆V_OUT = –2%
I_OUT = 5A, ∆V_OUT = –2%
I_OUT = 2.5A, V_IN = V_OUT + 1V
I_OUT = 5A, V_IN = V_OUT + 1V
V_IN ≤ V_OUT(nominal) – 0.5V, I_OUT = 10mA
V_OUT = 0V, V_IN = V_OUT + 1V
C_OUT = 47µF, I_OUT = 100mA, 10Hz to 100kHz
Enable Input (MIC39501)
V_EN
Enable Input Voltage
logic low (off)
logic high (on)
I_IN
Enable Input Current
V_EN = V_IN
Min
–1
–2
2.25
V_EN = 0.8V
I_OUT(shdn)
Shutdown Output Current
Flag Output (MIC39501)
I_FLG(leak)
Output Leakage Current
Note 8
V_OH = 16V
V_FLG(do)
Output Low Voltage
V_IN = 2.250V, I_OL, = 250µA, Note 9
Low Threshold
1% of V_OUT
93
V_FLG
High Threshold
1% of V_OUT
Hysteresis
Typ
0.06
0.2
20
125
320
400
15
70
2.1
7.5
260
30
10
0.01
180
1
Max Units
1
%
2
%
0.5
%
1
%
100
250 mV
mV
575 mV
50
mA
mA
mA
A
0.8
V
V
35
µA
75
µA
2
µA
4
µA
20
µA
1
µA
2
µA
300 mV
400 mV
%
99.2
%
%
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
Note 7.
Note 8.
Note 9.
Exceeding the absolute maximum ratings may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended.
P_D(max) = (T_J(max) – T_A) ÷ θ_JA, where θ_JA depends upon the printed circuit layout. See “Applications Information.”
Output voltage temperature coefficient is ∆V_{OUT(worst case)} ÷ (T_J(max) – T_J(min)) where T_J(max) is +125°C and T_J(min) is –40°C.
V_DO = V_IN – V_OUT when V_OUT decreases to 98% of its nominal output voltage with V_IN = V_OUT + 1V. For voltages below 2.25V, Dropout volt-
age is the input-to-output voltage differential with the minimum input voltage being 2.25V. Minimum input operating voltage is 2.25V.
I_GND is the quiescent current. I_IN = I_GND + I_OUT.
V_EN ≤ 0.8V, V_IN ≤ 8V, and V_OUT = 0V
For a 2.5V device, V_IN = 2.250V (device is in dropout).
August 2005
3
M9999-082605-B