Datasheet

LM2931-N
SNOSBE5G –MARCH 2000–REVISED APRIL 2013 www.ti.com
ELECTRICAL CHARACTERISTICS FOR ADJUSTABLE VERSION
V
IN
= 14V, V
OUT
= 3V, I
O
= 10 mA, T
J
= 25°C, R1 = 27k, C2 = 100 μF (unless otherwise specified)
(1)
Parameter Conditions Typ Limit Units Limit
Reference Voltage 1.20 1.26 V
MAX
1.14 V
MIN
I
O
≤ 100 mA, −40°C ≤ T
j
≤ 125°C, R1 = 27k 1.32 V
MAX
Measured from V
OUT
to Adjust Pin 1.08 V
MIN
Output Voltage Range 24 V
MAX
3 V
MIN
Line Regulation V
OUT
+ 0.6V ≤ V
IN
≤ 26V 0.2 1.5 mV/V
MAX
Load Regulation 5 mA ≤ I
O
≤ 100 mA 0.3 1 %
MAX
Output Impedance 100 mA
DC
and 10 mA
rms
, 100 Hz–10 kHz 40 mΩ/V
Quiescent Current I
O
= 10 mA 0.4 1 mA
MAX
I
O
= 100 mA 15 mA
During Shutdown R
L
= 500Ω 0.8 1 mA
MAX
Output Noise Voltage 10 Hz–100 kHz 100 μV
rms
/V
Long Term Stability 0.4 %/1000 hr
Ripple Rejection f
O
= 120 Hz 0.02 %/V
Dropout Voltage I
O
≤ 10 mA 0.05 0.2 V
MAX
I
O
= 100 mA 0.3 0.6 V
MAX
Maximum Operational Input
Voltage 33 26 V
MIN
Maximum Line Transient I
O
= 10 mA, Reference Voltage ≤ 1.5V 70 60 V
MIN
T = 1 ms, τ ≤ 100 ms
Reverse Polarity Input V
O
≥ −0.3V, R
L
= 500Ω
Voltage, DC −30 −15 V
MIN
Reverse Polarity Input T = 1 ms, τ ≤ 100 ms, R
L
= 500Ω
Voltage, Transient −80 −50 V
MIN
On/Off Threshold Voltage V
O
=3V
On 2.0 1.2 V
MAX
Off 2.2 3.25 V
MIN
On/Off Threshold Current 20 50 μA
MAX
(1) See circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used.
6 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated
Product Folder Links: LM2931-N