MIC3975
Micrel
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
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
MSOP-8
(θ
JA
) ...................................................... 80°C/W
Electrical Characteristics
(Note 12)
V
IN
= V
OUT
+ 1V; V
EN
= 2.25V; T
J
= 25°C,
bold
values indicate –40°C
≤
T
J
≤
+125°C; unless noted
Symbol
V
OUT
Parameter
Output Voltage
Line Regulation
Load Regulation
∆V
OUT
/∆T
V
DO
Output Voltage Temp. Coefficient,
Note 5
Dropout Voltage,
Note 6
I
OUT
= 100mA,
∆V
OUT
= –1%
I
OUT
= 500mA,
∆V
OUT
= –1%
I
OUT
= 750mA,
∆V
OUT
= –1%
I
GND
Ground Current,
Note 7
I
OUT
= 100mA, V
IN
= V
OUT
+ 1V
I
OUT
= 500mA, V
IN
= V
OUT
+ 1V
I
OUT
= 750mA, V
IN
= V
OUT
+ 1V
I
OUT(lim)
Enable Input
V
EN
I
EN
Enable Input Voltage
logic low (off)
logic high (on)
Enable Input Current
V
EN
= 2.25V
V
EN
= 0.8V
Flag Output
I
FLG(leak)
V
FLG(do)
V
FLG
Output Leakage Current
Output Low Voltage
Low Threshold
High Threshold
Hysteresis
V
OH
= 16V
V
IN
= 2.250V, I
OL
, = 250µA,
Note 9
% of V
OUT
% of V
OUT
1
93
99.2
0.01
210
1
2
300
400
µA
µA
mV
mV
%
%
%
2.25
1
15
30
75
2
4
0.8
V
V
µA
µA
µA
µA
Current Limit
V
OUT
= 0V, V
IN
= V
OUT
+ 1V
Condition
10mA
10mA
≤
I
OUT
≤
750mA, V
OUT
+ 1V
≤
V
IN
≤
8V
I
OUT
= 10mA, V
OUT
+ 1V
≤
V
IN
≤
16V
V
IN
= V
OUT
+ 1V, 10mA
≤
I
OUT
≤
750mA,
Min
–1
–2
0.06
0.2
40
140
225
300
400
4
7.5
1.8
15
2.5
500
Typ
Max
1
2
0.5
1
100
200
250
Units
%
%
%
%
ppm/°C
mV
mV
mV
mV
µA
mA
mA
A
February 2003
3
MIC3975
MICREL [ MICREL SEMICONDUCTOR ]
