LM7905, LM7912, LM7915
SNOSBQ7C –JUNE 1999–REVISED MAY 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS(1)
Input Voltage
(Vo = −5V)
−25V
−35V
(Vo = −12V and −15V)
Input-Output Differential
(Vo = −5V)
25V
30V
(Vo = −12V and −15V)
(2)
Power Dissipation
Internally Limited
0°C to +125°C
−65°C to +150°C
230°C
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensure Specific Performance limits. For ensured specifications and test
conditions, see the Electrical Characteristics.
(2) Refer to DESIGN CONSIDERATIONS for details.
ELECTRICAL CHARACTERISTICS
Conditions unless otherwise noted: IOUT = 500mA, CIN = 2.2μF, COUT = 1μF, 0°C ≤ TJ ≤ +125°C, Power Dissipation ≤ 1.5W.
Part Number
Output Voltage
LM7905C
−5V
Units
Input Voltage (unless otherwise specified)
−10V
Typ
Symbol
VO
Parameter
Output Voltage
Conditions
Min
−4.8
Max
−5.2
TJ = 25°C
−5.0
V
V
5mA ≤ IOUT ≤ 1A,
P ≤ 15W
−4.75
−5.25
(−20 ≤ VIN ≤ −7)
V
(1)
ΔVO
Line Regulation
Load Regulation
TJ = 25°C,
8
50
15
mV
V
(−25 ≤ VIN ≤ −7)
2
mV
V
(−12 ≤ VIN ≤ −8)
(1)
ΔVO
TJ = 25°C,
5mA ≤ IOUT ≤ 1.5A
250mA ≤ IOUT ≤ 750mA
TJ = 25°C
15
5
100
50
2
mV
mV
mA
mA
V
IQ
Quiescent Current
Quiescent Current
Change
1
ΔIQ
With Line
0.5
(−25 ≤ VIN ≤ −7)
With Load, 5mA ≤ IOUT ≤ 1A
TA = 25°C, 10Hz ≤ f ≤ 100Hz
f = 120Hz
0.5
mA
μV
dB
Vn
Output Noise Voltage
Ripple Rejection
125
54
66
(−18 ≤ VIN ≤ −8)
V
Dropout Voltage
Peak Output Current
Average Temperature
Coefficient of
TJ = 25°C, IOUT = 1A
TJ = 25°C
1.1
2.2
0.4
V
IOMAX
A
IOUT = 5mA,
mV/°C
0 C ≤ TJ ≤ 100°C
Output Voltage
(1) Regulation is measured at a constant junction temperature by pulse testing with a low duty cycle. Changes in output voltage due to
heating effects must be taken into account.
2
Submit Documentation Feedback
Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM7905 LM7912 LM7915
TI [ TEXAS INSTRUMENTS ]
