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NCP5661 Datasheet(PDF) 2 Page - ON Semiconductor

Part No. NCP5661
Description  Low Output Voltage,Ultra-Fast 1.0 A Low Dropout Linear Regulator with Enable
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP5661 Datasheet(HTML) 2 Page - ON Semiconductor

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NCP5661
http://onsemi.com
2
PIN FUNCTION DESCRIPTION
Pin
Adj/Fixed
Pin Name
Description
1
Enable
This pin allows for on/off control of the regulator. To disable the device, connect to Ground. If this
function is not in use, connect to Vin.
2
Vin
Positive Power Supply Input Voltage
3
Ground
Power Supply Ground
4
Vout
Regulated Output Voltage
5
Adj
(Adjustable Version)
This pin is connected to the resistor divider network and programs the output voltage.
5
Error Flag
(Fixed Version)
An Error Flag is triggered when the output voltage is out of regulation excluding transient signals
that may occur. Requires a pullup resistor
f 100 kW.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage
Vin
18
V
Output Pin Voltage
Vout
−0.3 to Vin +0.3
V
Adjust Pin Voltage
Vadj
−0.3 to Vin +0.3
V
Enable Pin Voltage
Ven
−0.3 to Vin +0.3
V
Error Flag Voltage
Vef
−0.3 to Vin +0.3
V
Error Flag Current
Ief
3.0
mA
Thermal Characteristics
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
RθJA
RθJC
100
8.0
°C/W
Operating Junction Temperature Range
TJ
−40 to +150
°C
Storage Temperature Range
Tstg
−55 to +150
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
NOTE:
This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) JESD 22−A114−B
Machine Model (MM) JESD 22−A115−A.
The maximum package power dissipation is:
P
D +
T
J(max) *
T
A
RqJA
The bipolar process employed for this IC is fully characterized and rated for reliable 18 V VCCmax operation. To avoid damaging
the part or degrading it’s reliability, power dissipation transients should be limited to under 20 W for DPAK.
For open−circuit to short−circuit transient,
PDTransient = VCCmax * ISC.


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