LP2992_15 Datasheet, PDF (5/33 Pages) Texas Instruments – LP2992 Micropower 250-mA Low-Noise Ultralow-Dropout Regulator in SOT-23 and WSON Packages Designed for Use with Very Low-ESR Output Capacitors

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LP2992
SNVS171H – NOVEMBER 2001 – REVISED JANUARY 2015
6.5 Electrical Characteristics
Unless otherwise specified: V_IN = V_OUT(NOM) + 1 V, I_L = 1 mA, C_IN = 1 µF, C_OUT = 4.7 µF, V_ON/OFF = 2 V. MIN (minimum) and
MAX (maximum) limits apply over the recommended operating temperature range unless otherwise noted; typical limits apply
for T_A = T_J = 25°C.
PARAMETER
TEST CONDITIONS
TYP
LP2992AI-X.X⁽¹⁾ LP2992I-X.X⁽¹⁾
UNIT
MIN MAX
MIN MAX
ΔV_OUT
ΔV_OUT/ΔV_IN
V_IN(min)
V_IN – V_OUT
I_GND
V_ON/OFF
I_L = 1 mA, T_J = 25°C
1 mA ≤ I_L ≤ 50 mA, T_J = 25°C
Output voltage tolerance
1 mA ≤ I_L ≤ 50 mA
1 mA ≤ I_L ≤ 250 mA, T_J = 25°C
1 mA ≤ I_L ≤ 250 mA
V_OUT(NOM) + 1 V ≤ V_IN ≤ 16 V
Output voltage line regulation ^TJ ^{= 25°C}
V_OUT(NOM) + 1 V ≤ V_IN ≤ 16 V
Minimum input voltage required to maintain output regulation
Dropout voltage⁽²⁾
Ground pin current
ON/OFF input voltage⁽³⁾
I_L = 0 mA, T_J = 25°C
I_L = 0 mA
I_L = 1 mA, T_J = 25°C
I_L = 1 mA
I_L = 50 mA, T_J = 25°C
I_L = 50 mA
I_L = 150 mA, T_J = 25°C
I_L = 150 mA
I_L = 250 mA, T_J = 25°C
I_L = 250 mA
I_L = 0 mA, T_J = 25°C
I_L = 0 mA
I_L = 1 mA, T_J = 25°C
I_L = 1 mA
I_L = 50 mA, T_J = 25°C
I_L = 50 mA
I_L = 150 mA, T_J = 25°C
I_L = 150 mA
I_L = 250 mA, T_J = 25°C
I_L = 250 mA
V_ON/OFF < 0.3 V, T_J = 25°C
V_ON/OFF < 0.15 V
High = O/P ON
Low = O/P OFF
0.007
2.05
0.5
5
100
260
450
65
75
350
850
1500
0.01
0.05
1.4
0.55
−1
1
−1.5
1.5
−2.5
2.5
−3.5
3.5
−4.5
4.5
0.014
0.032
2.2
2.5
4
9
12
125
180
325
470
575
850
95
125
110
170
600
1000
1500
2500
2300
4000
0.8
2
1.6
0.15
−1.5
−2.5
−3.5
−4
−5
1.6
1.5
2.5
3.5 %V_NOM
4
5
0.014
%/V
0.032
2.2 V
2.5
4
9
12
125
mV
180
325
470
575
850
95
125
110
170
600
1000
µA
1500
2500
2300
4000
0.8
2
V
0.15
I_ON/OFF
ON/OFF input current
e_n
Output noise voltage (RMS)
ΔV_OUT/ΔV_IN Ripple rejection
V_ON/OFF = 0
V_ON/OFF = 5 V
Bandwidth = 300 Hz to 50 kHz
C_OUT = 10 µF
C_BYPASS = 10 nF
f = 1 kHz, C_BYPASS = 10 nF
C_OUT = 10 µF
0.01
5
30
45
–2
–2
µA
15
15
µV
dB
(1) Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using
Statistical Quality Control (SQC) methods. The limits are used to calculate TI's Average Outgoing Quality Level (AOQL).
(2) V_IN must be the greater of 2.2 V or V_OUT(NOM) + dropout voltage to maintain output regulation. Dropout voltage is defined as the input-to-
output differential at which the output voltage drops 2% below the value measured with a 1-V differential.
(3) The ON/OFF input must be properly driven to prevent possible mis-operation. For details, see Operation with ON/OFF Control.
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