TS2951_15 Datasheet, PDF (3/9 Pages) Taiwan Semiconductor Company, Ltd – 150mA Ultra Low Dropout Voltage Regulator

TS2951
Taiwan Semiconductor
ELECTRICAL SPECIFICATIONS (V_IN=V_OUT+1V, T_A=25^oC, unless otherwise specified.)
PARAMETER
CONDITIONS^{(Note 2)}
MIN
TYP
MAX
UNIT
Feedback Pin Bias Current
--
20
40
nA
Reference Voltage Temperature
Coefficient^{(Note 7)}
--
20
--
ppm/ ^oC
Feedback Pin Bias Current
Temperature Coefficient
--
0.1
--
nA/^oC
Output Leakage Current
Output Low Voltage
Upper Threshold Voltage^{(Note 8)}
Power Threshold Voltage^{(Note 8)}
Hysteresis^{(Note 8)}
V_OH= 30V
V_IN= 4.5V, I_OL = 400µA
--
0.01
1
µA
--
150
250
mV
40
60
--
mV
--
75
95
mV
--
15
--
mV
Output Logic Voltage
Low (Regulator ON)
High (Regulator OFF)
--
1.3
0.7
V
2.0
1.3
--
Shut down Pin Current
Vs = 2.4V
Vs = 30V
--
30
50
µA
--
450
600
Regulator Output Current
shutdown
--
3
10
µA
Note:
1. Output voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range.
2. Unless otherwise specified all limits guaranteed for TJ= 25^oC, VIN= 6V, IL= 100µA and CL= 100µF. Additional conditions for
the 8-pin versions are feedback tied to 5V, 3.3V & 3V tap output Sense (VOUT = 5V, 3.3V & 3V) and shutdown ≤ 0.8V.
3. Regulation 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.
4. Line regulation for the TS2951 is tested at 85^oC for IL= 1mA. For IL= 100µA and TJ= 125^oC, line regulation is guaranteed by
design to 0.2%.
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 value of programmed output voltage, the minimum input supply voltage of 2V
(2.3V over temperature) must be taken in to account.
6. VREF ≤ VOUT ≤ (Vin-1V), 2.3≤ Vin≤ 30V, 100µA≤ IL ≤ 100mA, TJ ≤ TJ (max).
7. Reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
8. Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal
reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the
error amplifier gain= VOUT / VREF = (R1+R2) / R2. For example, at a programmed output voltage of 5V, the Error output is
guaranteed to go low when the output drops by 95 mV X 5V / 1.250 = 384mV. Thresholds remain constant as a percent of
VOUT as VOUT is varied with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed.
Document Number: DS_P0000207
3
Version: G15