ET-LP2950-XX Datasheet, PDF (3/4 Pages) Estek Electronics Co. Ltd – Typical application data 100 mA adjustable regulator

ET- LP2950-XX
ET- LP2951-XX
Electrical Characteristics
Electrical Characteristics at Ta = 25oC, VIN = 15V; unless otherwise noted
Parameter
Test Conditions (Note 2)
Output Voltage
-25°C≤T_J≤85°C
Full Operating Temperature
Output Voltage
Output Voltage Temperature Coefficient
100µA ≤ I_L ≤ 100mA, T_J≤T_JMAX
(Note 1)
Line Regulation (Note 3)
Load Regulation (Note 3)
Dropout Voltage (Note 5)
Ground Current
Dropout Ground Current
Current Limit
V₀ + 1V ≤ V_in ≤ 30V (Note 4)
100µA ≤ I_L ≤ 100mA
I_L=100 µA
I_L=100 mA
I_L=100 µA
I_L=100 mA
V_in=V₀ - 0.5V, I_L=100 µA
Vout=0
Thermal Regulation
Output Noise, 10Hz to 100KHz
C_L=1µF
C_L=200µF
C_L=3.3µF
(Bypass=0.01 µF pins 7 to 1
(MIK2951-XX))
8-pin Versions only
Reference Voltage
Reference Voltage
Over Temperature (Note 6)
Feedback Pin Bias Current
Reference Voltage Temperature Coefficient
(Note 7)
Feedback Pin Bias Current Temperature Coefficient
Error Comparator
Output Leakage Current
Voh=30V
Output Low Voltage
Upper Threshold Voltage
Vin=4.5V, I_OL=400 µA
(Note 8)
Lower Threshold Voltage
(Note 8)
Hysteresis
(Note 8)
Shutdown Input
Input Logic Voltage
Low (Regulator ON)
High (Regulator OFF)
Shut down Pin Input Current
Regulator Output Current in Shutdown
V_S=2.4V
V_S=30V
(Note 9)
V_OUT = 5.0 V
3.3V ≤ V_OUT < 5.0 V
2.0V ≤ V_OUT < 3.3 V
Min
0.985 |V₀|
0.98 |V₀|
0.976|V₀|
Typ
V₀
V₀
50
0.04
0.1
50
380
75
8
110
160
0.05
430
160
100
Max
1.015 |V₀|
1.02 |V₀|
1.024 |V₀|
150
0.4
0.3
80
450
120
12
170
200
0.2
Units
V
ppm/°C
%
%
mV
µA
mA
µA
mA
%/W
µV rms
1.21
1.185
1.235
20
50
0.1
1.26
1.285
40
V
nA
ppm/°C
nA/°C
0.01
1.0
µA
150
250
mV
40
60
75
95
15
1.3
0.7
V
2
30
50
450
600
3
10
µA
20
30
Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature
range.
Note 2: Unless otherwise specified all limits guaranteed for T_J = 25°C, Vin = V₀ + 1V, I_L = 100µA and C_L = 1µF. Additional conditions for
the 8-pin versions are feedback tied to -XX V tap and output tied to output Sense (V_out = XX V) and V_shutdown ≤ 0.8 V
Note 3: Regulations is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage
due to heating effects are covered under the specification for thermal regulation.
Note 4: Line regulation for MIK2951-XX is tested at 150°C for I_L = 1mA. For I_L = 100µA and T_J = 125°C, line regulation is guaranteed by
design to 0.2%. See typical performance characteristics for line regulation versus temperature and load current.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value
measured at 1V differential. At very low values of programmed output voltage, the minimum input supply voltage of 2V (2.3V over
temperature) must be taken into account.
Note 6: Vref ≤ Vout ≤ (Vin - 1V), 2.3V ≤ Vin ≤ 30V, 100µA ≤ I_L ≤ 100mA, T_J ≤ T_JMAX.
Note 7: Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
Note 8: Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal reference
voltage measured at V₀ + 1V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier
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