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GM78L09 Schematic ( PDF Datasheet ) - GAMMA

Teilenummer GM78L09
Beschreibung (GM78Lxx) 100 mA POSITIVE VOLTAGE REGULATORS
Hersteller GAMMA
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Gesamt 7 Seiten
GM78L09 Datasheet, Funktion
PRELIMINARY
GM78L00
100 mA POSITIVE VOLTAGE REGULATORS
www.DataSheet4U.com
Wide range of Fixed Output Voltages
Output Current up to 100 mA
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current-Limiting
Available in TO-92, SOT-89 and SOP-8 packages
The GM78L00 series of positive voltage regulators are low-cost
devices providing a simple solution for a wide variety of applica-
tions requiring a regulated supply of up to 100mA.
These virtually indestructible positive voltage regulators are pro-
tected by thermal shutdown and internal current-limiting. Most
applications require no external components.
The GM78L00’s are very versatile. Use them as fixed voltage regu-
lators in a wide range of applications, including local on-card regu-
lation for elimination of noise and distribution problems associated
with single-point regulation. They can also be used with power
pass elements to make high current voltage regulators.
The GM78L00’s offer impressive performance advantages over old-
fashioned zener diode-resistor combinations, providing lower out-
put impedance and reduced quiescent current, along with lower
noise.
PIN CONFIGURATIONS
TO-92 (TOP VIEW)
31 INPUT
2 GROUND
3 OUTPUT
SOT-89 (Top View)
123
VOUT GND VIN
SOP-8 (TOP VIEW)
VOUT 1
GND 2
GND 3
NC 4
8 VIN
7 GND
6 GND
5 NC
REPRESENTATIVE BLOCK DIAGRAM
Q3 Q5
15k
Q1
3.8k
Q4
Q6
Q11
Q10
5.0k
Q12
3.0k
0-25k
INPUT
OUTPUT
1.2k
Z1 Q2
420
2.2k
1.9k C
Q8
Q7
1.0k
Q9
2.85k
GROUND
Revision 1, May 2002
1 www.gammamicro.com






GM78L09 Datasheet, Funktion
PRELIMINARY
GM78L00
100 mA POSITIVE VOLTAGE REGULATORS
ELECTRICAL CHARACTERISTICS GM78L24
TA = 0°C to 125º C, VI=32V, IO=40mA, CI=0.33µF, CO=0.1µF, unless otherwise specified (Note 1)
www.DataSheet4U.com
CHARACTERISTICS
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Output Voltage
Line Regulation
Load Regulation
Output Voltage
(Note 2)
Quiscent Current
Quiscent Current Change
Noise
Ripple Rejection
Dropout Voltage
VO
TJ=25°C
23 24 25
VR LINE
TJ=25°C, 26.5V VI 39V
TJ=25°C, 29V VI 39V
95 480
78 400
VR LOAD
TJ=25°C, 1mA I O 100mA
TJ=25°C, 1mA I O 40mA
41 240
28 120
VO
26.5V VI 39V, 1mA I O 40mA
22.8
24
25.2
26.5V VI VMAX, 1mA I O 70mA
22.8
24
25.2
IQ TJ=25°C
4.8 6.5
IQ
(with Line)
(with Load)
22V VI 33V
1mA I O 40mA
1.5
0.1
NO TA=25°C, 10Hz f 100kHz
97
VI /VO
TJ=25°C, f=120kHz,,27.5V VI 37.5V
30
33
VDO TJ=25°C
1.7
V
mV
mV
V
mA
mA
µV
dB
V
Note 1: The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperatures as indicated at the initiation of tests.
Note 2: Power Dissipation 0.75W.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage (5.0 to 15V)
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (soldering 10sec.)
SYMBOL
VI
PD
TJ
Tstg
TL
VALUE
35
internally limited
0 to +125
-65 to +150
265
UNITS
V
W
°C
°C
°C
Revision 1, May 2002
5 www.gammamicro.com

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