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NCP4684 Datasheet

(NCP4681 / NCP4684) Low Dropout Regulator

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NCP4681, NCP4684
150 mA, Ultra Low
Quiescent Current, Low
Dropout Regulator
The NCP4681 and NCP4684 are CMOS Linear voltage regulators
with 150 mA output current capability and ultra low supply currents
(1 mA typ.) The devices are easy to use and include output current
protection and a fully integrated softstart circuit to minimize inrush
current and to ensure no output voltage overshoot. The NCP4681
includes an Enable function to reduce supply current by using a
Standby mode, while the NCP4684 excludes the Enable pin to avoid
any pull down current, thereby offering the lowest possible current
consumption for battery powered applications in Active mode. For
portable products the devices are available in the exceptionally small
0.8 x 0.8 mm XDFN, along with the SC70 and SOT23 packages
Features
Operating Input Voltage Range: 1.40 V to 5.25 V
Output Voltage Range: 0.8 V to 3.6 V (available in 0.1 V steps)
Output Voltage Accuracy: ±1.0%
Supply Current: 1 mA (excluding the CE pull down current)
Dropout Voltage: 0.28 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
Buildin Constant Slope Circuit for softstart function
Available in XDFN4 0.8 x 0.8 mm, SC70, 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
SC70
CASE 419A
XXX
XMM
1
SOT235
CASE 1212
XXXMM
1
1
XDFN4
CASE 711AB
XM
M
1
X, XXXX= Specific Device Code
MM = Date Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
VIN
C1
100n
NCP4681x
VIN VOUT
CE GND
VOUT
C2
100n
VIN
C1
100n
NCP4684
VIN VOUT
GND
VOUT
C2
100n
Figure 1. Typical Application Schematics
© Semiconductor Components Industries, LLC, 2013
September, 2013 Rev. 3
1
Publication Order Number:
NCP4681/D


  ON Semiconductor Electronic Components Datasheet  

NCP4684 Datasheet

(NCP4681 / NCP4684) Low Dropout Regulator

No Preview Available !

NCP4681, NCP4684
VIN VOUT VIN
Vref Vref
Current Limit
CE
CE
GND
Current Limit
NCP4681Hxxxx
NCP4681Dxxxx
VOUT
GND
VIN VOUT
Vref
Current Limit
NC
GND
NCP4684xxxx
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
XDFN0808*
Pin No.
SC70
Pin No.
SOT23
Pin Name
Description
1
4
5
VOUT
Output pin
2
3
2
GND
Ground
3
1
3
CE/NC
Chip enable pin (Active “H”) / No connection (NCP4684)
4 5 1 VIN Input pin
2 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.
http://onsemi.com
2


Part Number NCP4684
Description (NCP4681 / NCP4684) Low Dropout Regulator
Maker ON Semiconductor
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NCP4684 Datasheet PDF






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