SG7900A/SG7900 SERIES
-12V NEGATIVE REGULATOR
ELECTRICAL SPECIFICATIONS (Note 1)
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7912A/SG7912 with -55°C ≤ TA ≤ 150°C,
V
IN = -19V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2µF, and COUT = 1.0µF. Low duty cycle pulse
testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7912A/SG7912
SG7912A
SG7912
Min. Typ. Max. Min. Typ. Max.
-11.8 -12.0 -12.2 -11.5 -12.0 -12.5
Parameter
Output Voltage
Test Conditions
Units
TJ = 25°C
V
VIN = -14.5V to -30V, TJ = 25°C
VIN = -16V to -22V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C
IO = 250mA to 750mA, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -14.5V to -27V
Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
Over Temperature Range
4
3
20
10
10
60
30
90
40
40
10
3
12
4
120
60
120
60
mV
mV
mV
mV
mV
Line Regulation (Note 1)
Load Regulation (Note 1)
10
240
Total Output Voltage
Tolerance
-11.7 -12.0 -12.3 -11.4 -12.0 -12.6
-11.7 -12.0 -12.3 -11.4 -12.0 -12.6
V
V
4
3
1.0
0.5
0.5
4
3
1.0
0.5
0.5
mA
mA
mA
mA
mA
Quiescent Current
TJ = 25°C
with Line: VIN = -14.5V to -30V
with Load: IO = 5mA to 1.0A (Power Packages)
IO = 5mA to 500mA (T)
Quiescent Current Change
∆VO = 100mV, TJ = 25°C
Dropout Voltage
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
1.1
2.3
3.3
1.4
1.2
0.6
1.1
2.3
3.3
1.4
0.2
0.6
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
1.5
0.5
Peak Output Current
Short Circuit Current
54
54
Ripple Rejection
25
60
175
80
25
60
175
80
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
IO = 5mA
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing.
2. This test is guaranteed but is not tested in production.
05/01 Rev 1.5
Copyright 1999
5
LINFINITY Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570
MICRO-ELECTRONICS [ Micro Electronics ]
