NCP134
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4
ELECTRICAL CHARACTERISTICS −40°C ≤ T
J
≤ 85°C; V
BIAS
= 2.7 V or (V
OUT
+ 1.6 V), whichever is greater, V
IN
= V
OUT(NOM)
+
0.3 V, I
OUT
= 1 mA, V
EN
= 1 V, unless otherwise noted. C
IN
= 1 mF, C
OUT
= 2.2 mF. Typical values are at T
J
= +25°C. Min/Max values are
for −40°C ≤ T
J
≤ 85°C unless otherwise noted. (Note 4)
Parameter
Test Conditions Symbol Min Typ Max Unit
Operating Input Voltage
Range
V
IN
V
OUT
+
V
DO
5.5 V
Operating Bias Voltage
Range
V
BIAS
(V
OUT
+
1.40) ≥ 2.4
5.5 V
Undervoltage Lock−out V
BIAS
Rising
Hysteresis
UVLO 1.6
0.2
V
Output Voltage Accuracy V
OUT
±0.5 %
Output Voltage Accuracy −40°C ≤ T
J
≤ 85°C, V
OUT(NOM)
+ 0.3 V ≤ V
IN
≤
V
OUT(NOM)
+ 1.0 V, 2.7 V or (V
OUT(NOM)
+
1.6 V), whichever is greater < V
BIAS
< 5.5 V,
1 mA < I
OUT
< 500 mA
V
OUT
−1.5 +1.5 %
V
IN
Line Regulation V
OUT(NOM)
+ 0.3 V ≤ V
IN
≤ 5.0 V Line
Reg
0.01 %/V
V
BIAS
Line Regulation 2.7 V or (V
OUT(NOM)
+ 1.6 V), whichever is
greater < V
BIAS
< 5.5 V
Line
Reg
0.01 %/V
Load Regulation I
OUT
= 1 mA to 500 mA Load
Reg
1.5 mV
V
IN
Dropout Voltage
I
OUT
= 150 mA (Note 5) V
DO
37 75
mV
I
OUT
= 500 mA (Note 5) V
DO
140 250
V
IN
Dropout Voltage NCP134AMX110TCG device, V
OUT(NOM)
=
1.1 V
,
V
BIAS
= 3.3 V, I
OUT
= 500 mA (Note 5)
V
DO
100 150
V
BIAS
Dropout Voltage I
OUT
= 500 mA, V
IN
= V
BIAS
(Notes 5, 6) V
DO
1.1 1.5 V
Output Current Limit V
OUT
= 90% V
OUT(NOM)
I
CL
550 800 1000 mA
Bias Pin Operating Current V
BIAS
= 2.7 V I
BIAS
80 110
mA
Bias Pin Disable Current V
EN
≤ 0.4 V I
BIAS(DIS)
0.5 1
mA
Vinput Pin Disable Current V
EN
≤ 0.4 V I
VIN(DIS)
0.5 1
mA
EN Pin Threshold Voltage
EN Input Voltage “H” V
EN(H)
0.9
V
EN Input Voltage “L” V
EN(L)
0.4
EN Pull Down Current V
EN
= 5.5 V I
EN
0.3 1
mA
Turn−On Time From assertion of V
EN
to V
OUT
=
98% V
OUT(NOM)
. V
OUT(NOM)
= 1.0 V
t
ON
150
ms
Power Supply Rejection
Ratio
V
IN
to V
OUT
, f = 1 kHz, I
OUT
= 150 mA,
V
IN ≥ V
OUT
+0.5 V
PSRR(V
IN
) 70 dB
V
BIAS
to V
OUT
, f = 1 kHz, I
OUT
= 150 mA,
VIN ≥ V
OUT
+0.5 V
PSRR(V
BIAS
) 80 dB
Output Noise Voltage V
IN
= V
OUT
+0.5 V, V
OUT(NOM)
= 1 V,
f = 10 Hz to 100 kHz
V
N
40
mV
RMS
Thermal Shutdown
Threshold
Temperature increasing 160
°C
Temperature decreasing 140
Output Discharge
Pull−Down
V
EN
≤ 0.4 V, V
OUT
= 0.5 V, NCP134A options
only
R
DISCH
150
W
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T
A
= 25°C.
Low duty cycle pulse techniques are used during the testing to maintain the junction temperature as close to ambient as possible.
5. Dropout voltage is characterized when V
OUT
falls 3% below V
OUT(NOM)
.
6. For output voltages below 0.9 V, V
BIAS
dropout voltage does not apply due to a minimum Bias operating voltage of 2.4 V.
