NCP708
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4
ELECTRICAL CHARACTERISTICS − VOLTAGE VERSION 3.3 V
−40°C ≤ T
J
≤ 125°C; V
IN
= V
OUT(NOM)
+ 0.3 V or 2.4 V, whichever is greater; I
OUT
= 10 mA, C
IN
= C
OUT
= 4.7 mF, V
EN
= 0.9 V, unless
otherwise noted. Typical values are at T
J
= +25°C. (Note 3)
Parameter
Test Conditions Symbol Min Typ Max Unit
Operating Input Voltage V
IN
2.4 5.5 V
Undervoltage lock−out V
IN
rising UVLO 1.2 1.6 1.9 V
Output Voltage Accuracy V
OUT
+ 0.3 V ≤ V
IN
≤ 5.25 V, I
OUT
= 0 – 1 A V
OUT
3.25 3.3 3.35 V
Line Regulation V
OUT
+ 0.3 V ≤ V
IN
≤ 5.25 V, I
OUT
= 10 mA Reg
LINE
2 mV
Load Regulation I
OUT
= 0 mA to 1 A Reg
LOAD
2 mV
Load Transient Any 200 mA load step from I
OUT
= 10 mA to
1A or 10 mA to 1 A in 10 ms, C
OUT
= 10 mF
Tran
LOAD
±60 mV
Dropout voltage (Note 4) I
OUT
= 1 A, V
OUT(nom)
= 3.3 V V
DO
220 330 mV
Output Current Limit V
OUT
= 90% V
OUT(nom)
I
CL
1.1 A
Quiescent current I
OUT
= 0 mA I
Q
180 230
mA
Ground current I
OUT
= 1 A I
GND
200
mA
Shutdown current V
EN
≤ 0 V, V
IN
= 2.0 to 5.5 V 0.1 1
mA
Reverse Leakage Current
in Shutdown
V
IN
= 5.5 V, V
OUT
= V
OUT(NOM)
,
V
EN
< 0.4 V
I
REV
1.5 5
mA
EN Pin High Threshold
EN Pin Low Threshold
V
EN
Voltage increasing
V
EN
Voltage decreasing
V
EN_HI
V
EN_LO
0.9
0.4
V
V
EN Pin Input Current V
EN
= 5.5 V I
EN
100 500 nA
Turn−on Time
C
OUT
= 4.7 mF,
from assertion EN pin to 98% V
out(nom)
t
ON
200
ms
Power Supply Rejection Ratio V
IN
= 3.8 V,
V
OUT
= 3.3 V
I
OUT
= 0.1 A
f = 1 kHz PSRR 70 dB
Output Noise Voltage V
OUT
= 3.3 V, V
IN
= 3.6 V, I
OUT
= 0.1 A
f = 200 Hz to 100 kHz
V
NOISE
100
mV
rms
Thermal Shutdown Temperature Temperature increasing from T
J
= +25°C T
SD
160 °C
Thermal Shutdown Hysteresis Temperature falling from T
SD
T
SDH
− 20 − °C
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.
3. Performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at
T
J
= T
A
= 25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
4. Characterized when V
OUT falls 100 mV below the regulated voltage at VIN = VOUT(NOM) + 0.3 V.
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 0.3 V or V
IN
= 2.4 V whatever is greater, V
EN
= 0.9 V, I
OUT
= 10 mA, C
IN
= C
OUT
= 4.7 mF, T
J
= 25°C.
Figure 3. Output Voltage vs. Temperature Figure 4. Line Regulation vs. Temperature
TEMPERATURE (°C) TEMPERATURE (°C)
100806040200−20−40
3.25
3.26
3.28
3.29
3.30
3.32
3.33
3.35
100806040200−20−40
−2.0
−1.5
−1.0
0
0.5
1.0
1.5
2.0
OUTPUT VOLTAGE (V)
LINE REGULATION (mV)
120
3.27
3.31
3.34
120
−0.5
V
OUT−NOM
= 3.3 V
V
IN
= V
OUT−NOM
+ 0.3 V to 4.5 V
V
OUT−NOM
= 3.3 V
