Datasheet
uA78Mxx-Q1 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS537B − JUNE 2004 − REVISED SEPTEMBER 2008
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 14 V, I
O
= 350 mA, T
J
= 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
†
µA78M08Q
UNIT
PARAMETER
TEST CONDITIONS
†
MIN TYP MAX
UNIT
Ot t lt
V 105Vto23V
I 5mAto350mA
7.7 8 8.3
V
Output voltage
V
I
= 10.5 V to 23 V, I
O
= 5 mA to 350 mA
T
J
= −40°C to 125°C 7.6 8.4
V
Input voltage regulation
I 200 mA
V
I
= 10.5 V to 25 V 6 100
mV
Input voltage regulation I
O
= 200 mA
V
I
= 11 V to 25 V 2 50
mV
Ripple rejection
V
I
= 11.5 V to 21.5 V,
I
O
= 100 mA, T
J
= −40°C to 125°C 56
dB
Ripple rejection
V
I
=
11
.
5
V
to
21
.
5
V
,
f = 120 Hz
I
O
= 300 mA 56 80
dB
Output voltage regulation
I
O
= 5 mA to 500 mA 25 160
mV
Output voltage regulation
I
O
= 5 mA to 200 mA 10 80
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 52 µV
Dropout voltage 2 V
Bias current 4.6 6 mA
Bias current change
V
I
= 10.5 V to 25 V, I
O
= 200 mA, T
J
= −40°C to 125°C 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 250 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.
electrical characteristics at specified virtual junction temperature, V
I
= 17 V, I
O
= 350 mA, T
J
= 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
†
µA78M10Q
UNIT
PARAMETER
TEST CONDITIONS
†
MIN TYP MAX
UNIT
Ot t lt
V 125Vto25V
I 5mAto350mA
9.6 10 10.4
V
Output voltage
V
I
= 12.5 V to 25 V, I
O
= 5 mA to 350 mA
T
J
= −40°C to 125°C 9.5 10.5
V
Input voltage regulation
I 200 mA
V
I
= 12.5 V to 28 V 7 100
mV
Input voltage regulation I
O
= 200 mA
V
I
= 14 V to 28 V 2 50
mV
Ripple rejection
V
I
= 15 V to 25 V,
I
O
= 100 mA, T
J
= −40°C to 125°C 59
dB
Ripple rejection
V
I
=
15
V
to
25
V
,
f = 120 Hz
I
O
= 300 mA 55 80
dB
Output voltage regulation
I
O
= 5 mA to 500 mA 25 200
mV
Output voltage regulation
I
O
= 5 mA to 200 mA 10 100
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 64 µV
Dropout voltage 2 V
Bias current 4.7 6 mA
Bias current change
V
I
= 12.5 V to 28 V, I
O
= 200 mA, T
J
= −40°C to 125°C 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 245 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.