SG79xxA / SG79xx
PRODUCT DATASHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
WWW.Microsemi .COM
Copyright © 1997
Rev. 1.6, 2010-07-16
Negative Fixed Voltage Regulator
TM
®
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7905A / SG7905 with -55°C < T
A
<
125°C, V
IN
= -10V, I
O
= 500mA for the K, G, and IG – Power Packages, I
O
= 100mA for the T and L packages, C
IN
= 2µF, and C
OUT
=
1µF. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.
Parameter Test Conditions
SG7905A SG7905 Units
Min Typ Max Min Typ Max
Output Voltage T
J
= 25°C -4.95 -5.00 -5.08 -4.80 -5.00 -5.20 V
Line Regulation (Note 1) V
IN
= -7.5V to -25V, T
J
= 25°C 5 25 3 50 mV
V
IN
= -8V to -12V, T
J
= 25°C 3 12 1 25 mV
Load Regulation (Note 1) Power Pkgs: I
O
= 5mA to 1.5A, T
J
= 25°C 15 75 15 100 mV
I
O
= 250mA to 750mA, T
J
= 25°C 15 25 15 25 mV
T – Pkg: I
O
= 5mA to 500mA, T
J
= 250°C 5 30 5 100 mV
Total Output Voltage V
IN
= -8V to -20V
Tolerance Power Pkgs: I
O
= 5mA to 1.0A, P < 20W -4.85 -5.00 -5.15 -4.70 -5.00 -5.30 V
T – Pkg: I
O
=5mA to 500mA, P < 20W -4.85 -5.00 -5.15 -4.70 -5.00 -5.30 V
Quiescent Current Over Temperature Range 2.5 2.5 mA
T
J
= 25°C 2.0 2.0 mA
Quiescent Current Change With Line: V
IN
= -8V to -25V 1.3 1.3 mA
With Load: I
O
= 5mA to 1.0A (Power Pkgs.) 0.5 0.5 mA
I
O
= 5mA to 500mA (T) 0.5 0.5 mA
Dropout Voltage ∆V
O
= 100mV, T
J
= 25°C
Power Pkgs: I
O
= 1.0A, T-Pkg: I
O
= 500mA 1.1 2.3 1.1 2.3 V
Peak Output Current Power Pkgs: T
J
= 25°C 1.5 3.3 1.5 3.3 A
T – Pkg: T
J
= 25°C 0.5 1.4 0.5 1.4 A
Short Circuit Current Power Pkgs: V
IN
= -35V, T
J
= 25°C 1.2 1.2 A
T – Pkg: V
IN
= -35V, T
J
= 25°C 0.6 0.6 A
Ripple Rejection ∆V
IN
= 10V, f = 120Hz, T
J
= 25°C 54 54 dB
Output Noise Voltage (rms) f = 10Hz to 100kHz (Note 2) 25 80 25 80 µV/V
Long Term Stability 1000 hours @ T
J
= 125°C 20 20 mV
Thermal Shutdown I
O
= 5mA 175 175 °C
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.
E
E
L
L
E
E
C
C
T
T
R
R
I
I
C
C
A
A
L
L
S
S
