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
Condition
Output Voltage
Line Regulation
Load Regulation
ΔV
OUT
/ΔT
ppm/°C
V
DO
Output Voltage Temp. Coefficient,
Note 5
Dropout Voltage,
Note 6
I
OUT
= 100mA, ΔV
OUT
= –1%
I
OUT
= 500mA, ΔV
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
= 750mA, ΔV
OUT
= –1%
140
225
300
400
4
7.5
1.8
15
2.5
0.8
2.25
1
15
30
75
2
4
0.01
210
93
99.2
1
1
2
300
400
500
200
250
mV
mV
mV
mV
µA
mA
mA
A
V
V
µA
µA
µA
µA
µA
µA
mV
mV
%
%
%
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
Typ
Max
1
2
0.5
1
100
Units
%
%
%
%
I
OUT(lim)
V
EN
I
EN
Current Limit
Enable Input Voltage
Enable Input Current
Enable Input
V
OUT
= 0V, V
IN
= V
OUT
+ 1V
logic low (off)
logic high (on)
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
February 2005
3
MIC3975
MICREL [ MICREL SEMICONDUCTOR ]
