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  ON Semiconductor Electronic Components Datasheet  

NCP4685 Datasheet

Low Dropout Regulator

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NCP4682, NCP4685
150 mA, Ultra Low Supply
Current, Low Dropout
Regulator
The NCP4682 and NCP4685 are CMOS Low Dropout Linear
voltage regulators with 150 mA output current capability. The devices
have high output voltage accuracy, a 1 mA (typ.) ultra low supply
current and high ripple rejection. Current foldback protection is
integrated in the devices to protect against over current and short
current conditions. A Chip Enable (NCP4682 only) function is
included to save power by further lowering supply current, which is
advantageous for battery powered applications. The NCP4685 is
optimized for the lowest quiescent current possible in applications
where the device is always on.
Features
Operating Input Voltage Range: 1.70 V to 5.25 V
Output Voltage Range: 1.2 V to 3.3 V (available in 0.1 V steps)
Output Voltage Accuracy: ±0.8%
Excellent Output Voltage Temperature Coefficient : ±40 ppm/°C
Supply Current: 1.0 mA (excluding CE pull down current)
Standby Current: 0.1 mA
Dropout Voltage: 0.24 V (IOUT = 150 mA, VOUT = 2.8 V)
Line Regulation: 0.02%/V Typ.
Stable with Ceramic Capacitors: 0.1 mF or more
Current Fold Back Protection
Available in UDFN4 1.0 x 1.0 mm, SC82AB, SOT23 Packages
These are PbFree Devices
Typical Applications
BatteryPowered Equipment
Networking and Communication Equipment
Cameras, DVRs, STB and Camcorders
Home Appliances
http://onsemi.com
MARKING
DIAGRAMS
SOT235
CASE 1212
XXX MG
G
SC82AB
CASE 419C
XXX M
G
1
1
UDFN4
CASE 517BR
XX
MM
1
XXX, XX = Specific Device Code
M, MM = Date Code
G = PbFree Package
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 19 of this data sheet.
VIN
C1
100n
NCP4682x
VIN VOUT
CE
GND
VOUT
C2
100n
VIN
C1
100n
NCP4685x
VIN VOUT
GND
Figure 1. Typical Application Schematics
VOUT
C2
100n
© Semiconductor Components Industries, LLC, 2012
October, 2012 Rev. 3
1
Publication Order Number:
NCP4682/D


  ON Semiconductor Electronic Components Datasheet  

NCP4685 Datasheet

Low Dropout Regulator

No Preview Available !

NCP4682, NCP4685
VIN
Vref
Current Limit
CE
NCP4682Hxxxx
VOUT VIN
CE
GND
Vref
Current Limit
NCP4682Dxxxx
VOUT
GND
VIN VOUT
Vref
Current Limit
NC
GND
NCP4685Exxxx
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
UDFN1010*
Pin No.
SC82AB
Pin No.
SOT23
Pin Name
Description
1
3
5
VOUT
Output pin
2
2
2
GND
Ground
3
1
3
CE/NC
Chip enable pin (Active “H”) / No connection
4 4 1 VIN Input pin
− − 4 NC No connection
*Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Symbol
VIN
VOUT
VCE
IOUT
Value
6.0
0.3 to VIN + 0.3
6.0
200
Unit
V
V
V
mA
http://onsemi.com
2


Part Number NCP4685
Description Low Dropout Regulator
Maker ON Semiconductor
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NCP4685 Datasheet PDF






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