Datasheet
uA78Mxx-Q1 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS537B − JUNE 2004 − REVISED SEPTEMBER 2008
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 8 V, I
O
= 350 mA, T
J
= 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
†
µA78M33Q
UNIT
PARAMETER
TEST CONDITIONS
†
MIN TYP MAX
UNIT
Ot t lt
‡
I
O
= 5 mA to 350 mA,
3.2 3.3 3.4
V
Output voltage
‡
I
O
=
5
mA
to
350
mA
,
V
I
= 8 V to 20 V
T
J
= −40°C to 125°C 3.1 3.3 3.5
V
Input voltage regulation
I 200 mA
V
I
= 5.3 V to 25 V 9 100
mV
Input voltage regulation I
O
= 200 mA
V
I
= 8 V to 25 V 3 50
mV
Ripple rejection
V
I
= 8 V to 18 V,
I
O
= 100 mA, T
J
= −40°C to 125°C 62
dB
Ripple rejection
V
I
=
8
V
to
18
V
,
f = 120 Hz
I
O
= 300 mA 62 80
dB
Output voltage regulation V
I
= 8 V, I
O
= 5 mA to 500 mA 20 100 mV
Temperature coefficient of output voltage I
O
= 5 mA, T
J
= −40°C to 125°C −1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 40 200 µV
Dropout voltage 2 V
Bias current 4.5 6 mA
Bias current chan
g
e
I
O
= 200 mA,
T
J
= −40°C to 125°C
V
I
= 8 V to 25 V,
0.8
mA
Bias
current
change
I
O
= 5 mA to 350 mA, T
J
= −40°C to 125°C 0.5
mA
Short-circuit output current V
I
= 35 V 300 mA
Peak output current 700 mA
†
All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output. Pulse-testing techniques
maintain T
J
as close to T
A
as possible. Thermal effects must be taken into account separately.
‡
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
electrical characteristics at specified virtual junction temperature, V
I
= 10 V, I
O
= 350 mA, T
J
= 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
†
µA78M05Q
UNIT
PARAMETER
TEST CONDITIONS
†
MIN TYP MAX
UNIT
O tp t oltage
I
O
= 5 mA to 350 mA,
4.8 5 5.2
V
Output voltage
I
O
=
5
mA
to
350
mA
,
V
I
= 7 V to 20 V
T
J
= −40°C to 125°C 4.75 5.25
V
Input voltage regulation
I 200 mA
V
I
= 7 V to 25 V 3 100
mV
Input voltage regulation I
O
= 200 mA
V
I
= 8 V to 25 V 1 50
mV
Ripple rejection
V
I
= 8 V to 18 V,
I
O
= 100 mA, T
J
= −40°C to 125°C 62
dB
Ripple rejection
V
I
=
8
V
to
18
V
,
f = 120 Hz
I
O
= 300 mA 62 80
dB
Output voltage regulation
I
O
= 5 mA to 500 mA 20 100
mV
Output voltage regulation
I
O
= 5 mA to 200 mA 10 50
mV
Temperature coefficient of output voltage I
O
= 5 mA, T
J
= −40°C to 125°C −1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 40 200 µV
Dropout voltage 2 V
Bias current 4.5 6 mA
Bias current chan
g
e
I
O
= 200 mA,
T
J
= −40°C to 125°C
V
I
= 8 V to 25 V,
0.8
mA
Bias
current
change
I
O
= 5 mA to 350 mA, T
J
= −40°C to 125°C 0.5
mA
Short-circuit output current V
I
= 35 V 300 mA
Peak output current 0.7 A
†
All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output. Pulse-testing techniques
maintain T
J
as close to T
A
as possible. Thermal effects must be taken into account separately.