NCV8570B
ELECTRICAL CHARACTERISTICS
(VIN = VOUT + 0.5 V or 2.5 V (whichever is greater), VEN = 1.2 V, CIN = COUT = 1 mF, Cnoise = 10 nF, IOUT = 1 mA, TJ = −40C to 125C,
unless otherwise specified) (Note 4)
Parameter
Test Conditions
Symbol
Min
Typ
Max Unit
REGULATOR OUTPUT
Input Voltage Range
Output Voltage
1.8 V VIN = (VOUT + 0.5 V) to 5.5 V
2.5 V IOUT = 1 mA to 200 mA
2.8 V
3.0 V
3.3 V
VIN
VOUT
2.5
−
5.5
V
1.755
−
1.845
V
2.4375
−
2.5625
2.730
−
2.870
2.925
−
3.075
3.2175
−
3.3825
(−2.5%)
(+2.5%)
Power Supply Ripple Rejection
VIN = VOUT +1.0 V,
f = 120 Hz
IOUT = 1 mA to 150 mA f = 1 kHz
f = 10 kHz
PSRR
−
80
−
dB
−
82
−
−
63
−
Line Regulation
Load Regulation
Output Noise Voltage
Output Current Limit
Output Short Circuit Current
Dropout Voltage (Note 5)
Dropout Voltage (Note 5)
GENERAL
VIN = (VOUT +0.5 V) to 5.5 V, IOUT = 1 mA DVOUT / DVIN −0.1
−
0.1
%/V
IOUT = 1 mA to 200 mA
DVOUT / DIOUT
−
0.2
5.0
mV
VOUT = 1.8 V,
Cnoise = 100 nF
VN
−
10
−
mVRMS
f = 10 Hz to 100 kHz, Cnoise = 10 nF
−
15
−
IOUT = 1 mA to 150 mA
VOUT = VOUT(NOM) – 0.1 V
ILIM
200
310
470
mA
VOUT = 0V
ISC
205
320
490
mA
IOUT= 150 mA
VOUT(NOM) = 2.5 V
VOUT(NOM) = 2.8 V
VOUT(NOM) = 3.0 V
VOUT(NOM) = 3.3 V
VDO
−
100
180
mV
−
90
165
−
85
150
−
80
145
IOUT= 200 mA
VOUT(NOM) = 2.5 V
VOUT(NOM) = 2.8 V
VOUT(NOM) = 3.0 V
VOUT(NOM) = 3.3 V
VDO
−
140
230
mV
−
120
205
−
115
190
−
110
185
Ground Current
Disable Current
Thermal Shutdown
OUTPUT ENABLE
IOUT = 1 mA
IOUT = 200 mA
VEN = 0 V
Shutdown, Temperature Increasing
Reset, Temperature Decreasing
IGND
IDIS
TSDU
TSDD
−
70
110
mA
−
75
130
−
0.1
1.0
mA
−
150
−
C
−
135
−
C
Enable Threshold
Low
High
Vth(EN)
−
−
0.4
V
1.2
−
−
Internal Pull−Down Resistance
(Note 6)
RPD(EN)
2.5
5.0
10
MW
TIMING
Turn−On Time
IOUT = 10 mA, VOUT = Cnoise = 10 nF
tON
−
0.4
−
ms
0.975 VOUT(NOM)
Cnoise = 100 nF
−
4.0
−
Turn−Off Time
Cnoise = 10nF/100nF, IOUT = 1 mA
VOUT = 0.1 VOUT(NOM) IOUT = 10 mA
tOFF
−
2.0
−
ms
−
0.6
−
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TJ = TA = 25C. Low
duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
5. Measured when the output voltage falls 100 mV below the nominal output voltage (nominal output voltage is the voltage at the output meas-
ured under the condition VIN = VOUT + 0.5 V). In the case of devices having the nominal output voltage VOUT = 1.8 V the minimum input
to output voltage differential is given by the VIN(MIN) = 2.5 V.
6. Expected to disable the device when EN pin is floating.
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