LP2953QML-SP_15 Datasheet, PDF (7/26 Pages) Texas Instruments – LP2953QML Adjustable Micropower Low-Dropout Voltage Regulators

LP2953QML, LP2953QML-SP
www.ti.com
SNVS395C – NOVEMBER 2010 – REVISED APRIL 2013
LP2953A Electrical Characteristics Dropout Detection Comparator Parameters
The following conditions apply, unless otherwise specified. V_I = 6V, I_L = 1mA, C_L = 2.2µF, V_O = 5V
Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin.
Parameter
Test Conditions
Notes Min Max
I_OH
Output "High" Leakage
V_OH = 30V
V_OL
Output "Low" Voltage
V_I = 4V, I_O Comp = 400µA
V_{Th Max}
Upper Threshold Voltage
V_{Th Min}
Lower Threshold Voltage
See ⁽¹⁾
See ⁽¹⁾
-320
-380
-380
-450
-640
-640
1.0
2.0
250
400
-150
-130
-120
-280
-180
-155
Units
µA
µA
mV
mV
mV
mV
mV
mV
mV
mV
Sub-
groups
1
2, 3
1
2, 3
1
2
3
1
2
3
(1) Comparator thresholds are expressed in terms of a voltage differential at the Feedback terminal below the nominal V_Ref measured at V_I
= V_O(Nom) + 1V. To express these thresholds in terms of output voltage change, multiply by the Error amplifier gain, which is V_O/ V_Ref =
(R1 + R2)/R2 (refer to Figure 31).
LP2953A Electrical Characteristics SHUTDOWN Input Parameters
The following conditions apply, unless otherwise specified. V_I = 6V, I_L = 1mA, C_L = 2.2µF, V_O = 5V
Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin.
Parameter
Test Conditions
Notes Min Max
V_IO
Input Offset Voltage
Referred to V_Ref
I_IB
Input Bias Current
V_I Comp = 0 to 5V
-7.5 7.5
-10 10
-12 12
-30 30
-50 50
-75 75
Units
mV
mV
mV
nA
nA
nA
Sub-
groups
1
2
3
1
2
3
LP2953A Electrical Characteristics Auxillary Comparator Parameters
The following conditions apply, unless otherwise specified. V_I = 6V, I_L = 1mA, C_L = 2.2µF, V_O = 5V
Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin.
Parameter
Test Conditions
Notes Min Max
V_IO
Input Offset Voltage
Referred to V_Ref
I_IB
Input Bias Current
V_I Comp = 0 to 5V
I_OH
Output "High" Leakage
V_OH = 30V, V_I Comp = 1.3V
V_OL
Output "Low" Voltage
V_I Comp = 1.1V, I_O Comp = 400µA
-7.5 7.5
-10 10
-12 12
-30 30
-50 50
-75 75
1.0
2.0
2.2
250
400
420
Units
mV
mV
mV
nA
nA
nA
µA
µA
µA
mV
mV
mV
Sub-
groups
1
2
3
1
2
3
1
2
3
1
2
3
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