Datasheet

LM2930
www.ti.com SNVS745D –APRIL 1998–REVISED APRIL 2013
Electrical Characteristics
(1)
LM2930-8.0 (V
IN
=14V, I
O
=150 mA, T
j
=25°C
(2)
, C2=10 μF, unless otherwise specified)
Parameter Conditions Typ Tested Design Unit
Limit
(3)
Limit
(4)
Output Voltage 8 8.5 V
MAX
7.5 V
MIN
9.4V≤V
IN
≤26V, 5 mA≤I
O
≤150 mA, 8.8 V
MAX
−40°C≤T
J
≤125°C
7.2 V
MIN
Line Regulation 9.4V≤V
IN
≤16V, I
O
=5 mA 12 50 mV
MAX
9.4V≤V
IN
≤26V, I
O
=5 mA 50 100 mV
MAX
Load Regulation 5 mA≤I
O
≤150 mA 25 50 mV
MAX
Output Impedance 100 mA
DC
& 10 mA
rms
, 100 Hz−10 kHz 300 mΩ
Quiescent Current I
O
=10 mA 4 7 mA
MAX
I
O
=150 mA 18 40 mA
MAX
Output Noise Voltage 10 Hz−100 kHz 170 μV
rms
Long Term Stability 30 mV/1000 hr
Ripple Rejection f
O
=120 Hz 52 dB
Current Limit 400 700 mA
MAX
150 mA
MIN
Dropout Voltage I
O
=150 mA 0.32 0.6 V
MAX
Output Voltage Under −12V≤V
IN
≤40V, R
L
=100Ω 8.8 V
MAX
Transient Conditions −0.3 V
MIN
(1) All characteristics are measured with a capacitor across the input of 0.1 μF and a capacitor across the output of 10 μF. All
characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (t
W
≤10 ms, duty cycle≤5%). Output
voltage changes due to changes in internal temperature must be taken into account separately.
(2) To ensure constant junction temperature, low duty cycle pulse testing is used.
(3) Ensured and 100% production tested.
(4) Ensured (but not 100% production tested) over the operating temperature and input current ranges. These limits are not used to
calculate outgoing quality levels.
Typical Application
*Required if regulator is located far from power supply filter.
**C
OUT
must be at least 10 μF to maintain stability. May be increased without bound to maintain regulation during
transients. Locate as close as possible to the regulator. This capacitor must be rated over the same operating
temperature range as the regulator. The equivalent series resistance (ESR) of this capacitor should be less than 1Ω
over the expected operating temperature range.
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