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NCV8668ABD250R2G Datasheet(PDF) 5 Page - ON Semiconductor

Part # NCV8668ABD250R2G
Description  Very Low I 150 mA LDO Regulator with Window Watchdog, Enable and Reset
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

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ELECTRICAL CHARACTERISTICS
Vin = 13.2 V, Cin = 0.1 mF, Cout = 2.2 mF, for typical values TJ = 25°C, for min/max values TJ = −40°C to 150°C; unless otherwise noted.
(Notes 10 and 11)
Parameter
Unit
Max
Typ
Min
Symbol
Test Conditions
Disable and Quiescent Current
Disable Current
VEN = 0 V,TJ < 85°C
IDIS
1
mA
Quiescent Current (Iq = Iin – Iout)
Iout = 100 mA, TJ = 25°C
Iout = 100 mA, TJ v 125°C
Iq
38
43
44
mA
Current Limit Protection
Current Limit
Vout = 0.96 x Vout_nom
ILIM
205
525
mA
Short Circuit Current Limit
Vout = 0 V
ISC
205
525
mA
Reverse Output Current Protection
Reverse Output Current Protection
VEN = 0 V, Iout = −1 mA
Vout_rev
2
5.5
V
PSRR
Power Supply Ripple Rejection (Note 13) f = 100 Hz, 0.5Vpp
PSRR
60
dB
Enable Thresholds
Enable Input Threshold Voltage
Logic High
Logic Low
Vth(EN)
3
0.8
V
Enable Input Current
Logic High
Logic Low
VEN = 5 V
VEN = 0 V, TJ < 85°C
IEN_ON
IEN_OFF
3
0.5
5
1
mA
Window Watchdog
Watchdog Mode Bit 1 Threshold Voltage
Voltage Increasing, Logic High
3.3 V
5.0 V
Voltage Decreasing, Logic Low
VWM1,H
VWM1,L
0.8
2.65
4.0
V
Watchdog Mode Bit 2 Threshold Voltage
Voltage Increasing, Logic High
3.3 V
5.0 V
Voltage Decreasing, Logic Low
VWM2,H
VWM2,L
0.8
2.65
4.0
V
Watchdog Input WDI Threshold Voltage
Voltage Increasing, Logic High
3.3 V
5.0 V
Voltage Decreasing, Logic Low
VWDI,H
VWDI,L
0.8
2.65
4.0
V
Watchdog Input WDI Current
Logic High
Logic Low
VWDI,H = 5 V
VWDI,L = 0 V, TJ < 85 °C
IWDI,H
IWDI,L
3
0.5
4
1
mA
Watchdog Sampling Time
Fast:
WM2 = L
Slow:
WM1 = L AND WM2 = H
tsam
0.4
0.8
0.5
1.0
0.6
1.2
ms
Ignore Window Time
Fast:
WM2 = L
Slow:
WM1 = L AND WM2 = H
tIW
25.6
51.2
32.0
64.0
38.4
76.8
ms
Open Window Time
Fast:
WM2 = L
Slow:
WM1 = L AND WM2 = H
tOW
25.6
51.2
32.0
64.0
38.4
76.8
ms
Closed Window Time
Fast:
WM2 = L
Slow:
WM1 = L AND WM2 = H
tCW
25.6
51.2
32.0
64.0
38.4
76.8
ms
10.Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
11. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [TJ. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
12.Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V. If Vout < 5 V, then VDO = Vin – Vout. Maximum dro-
pout voltage value is limited by minimum input voltage Vin = 4.5 V recommended for guaranteed operation at maximum output current.
13.Values based on design and/or characterization.
14.Recommended for typical trigger time. TWD = tCW + 1/2 * tOW


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