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NCP4683 Datasheet

Low Dropout Regulator

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NCP4683
300 mA, Low Dropout
Regulator
The NCP4683 is a CMOS Linear voltage regulator with 300 mA
output current capability. The device has high output voltage accuracy,
low supply current and high ripple rejection. The NCP4683 is easy to
use, with output current fold−back protection circuit included. A Chip
Enable function is included to save power by lowering supply current.
The line and load transient responses are very good, thus this regulator
is suitable for use as a power supply for communication equipment.
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% (VOUT > 2.0 V)
Supply Current: 50 mA
Dropout Voltage: 0.25 V (IOUT = 300 mA, VOUT = 2.8 V)
High PSRR: 70 dB (f = 1 kHz)
Line Regulation: 0.02%/V Typ.
Stable with Ceramic Capacitors: 1.0 mF or more
Current Fold Back Protection
Available in UDFN4 1.0 x 1.0 mm, SC−70, SOT23 Packages
These are Pb−Free Devices
Typical Applications
Battery−powered Equipment
Networking and Communication Equipment
Cameras, DVRs, STB and Camcorders
Home Appliances
VIN
C1
1m
NCP4683x
VIN VOUT
CE
GND
VOUT
C2
1m
www.onsemi.com
MARKING
DIAGRAMS
SOT−23−5
CASE 1212
XXX
M
SC−70
CASE 419A
XXX
XMM
1
UDFN4
CASE 517BR
XX
MM
1
XX, XXX, XXXX = Specific Device Code
M, MM
= Date Code
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 18 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2016
February, 2016 − Rev. 3
1
Publication Order Number:
NCP4683/D


  ON Semiconductor Electronic Components Datasheet  

NCP4683 Datasheet

Low Dropout Regulator

No Preview Available !

NCP4683
VIN VOUT VIN
VOUT
Vref Vref
Current Limit
CE
CE
GND
Current Limit
NCP4683Hxxxx
NCP4683Dxxxx
Figure 2. Simplified Schematic Block Diagram
GND
PIN FUNCTION DESCRIPTION
Pin No.
UDFN1010*
Pin No.
SC−70
Pin No.
SOT23
Pin Name
1 4 5 VOUT
2 3 2 GND
3 1 3 CE
4 5 1 VIN
− 2 4 NC
*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.
Description
Output pin
Ground
Chip enable pin (Active “H”)
Input pin
No connection
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation UDFN1010
Power Dissipation SC−70
VIN
VOUT
VCE
IOUT
PD
6.0
−0.3 to VIN + 0.3
−0.3 to 6.0
400
400
380
V
V
V
mA
mW
Power Dissipation SOT23
420
Junction Temperature
TJ
−40 to 150
°C
Storage Temperature
TSTG
−55 to 125
°C
ESD Capability, Human Body Model (Note 2)
ESDHBM
2000
V
ESD Capability, Machine Model (Note 2)
ESDMM
200
V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
www.onsemi.com
2


Part Number NCP4683
Description Low Dropout Regulator
Maker ON Semiconductor
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