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NCP4680 Datasheet

Low Noise Low Dropout Regulator

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NCP4680
150 mA, Low Noise Low
Dropout Regulator
The NCP4680 is a CMOS linear voltage regulator with 150 mA
output current capability. The device is available in a tiny 0.8x0.8 mm
XDFN, and has high output voltage accuracy, low supply current and
high ripple rejection. The NCP4680 is easy to use and includes output
current foldback protection. A Chip Enable function is included to
save power by lowering supply current. The line and load transient
responses are very good, making this regulator ideal 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%
Supply Current: 50 mA typical
Dropout Voltage: 0.25 V (IOUT = 150 mA, VOUT = 2.5 V)
High PSRR: 75 dB (f = 1 kHz, VOUT = 2.5 V)
Line Regulation: 0.02%/V Typ.
Stable with Ceramic Capacitors: 0.1 mF or more
Current Fold Back Protection
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
VIN NCP4680x
VIN VOUT
VOUT
C1
100n
CE
GND
C2
100n
http://onsemi.com
MARKING
DIAGRAMS
SC70
CASE 419A
XXX
XMM
SOT235
CASE 1212
XX
M
1
XDFN4
CASE 711AB
XM
M
1
XX, XXX= Specific Device Code
M, MM = Date Code
A = Assembly Location
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2011
June, 2011 Rev. 1
1
Publication Order Number:
NCP4680/D
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  ON Semiconductor Electronic Components Datasheet  

NCP4680 Datasheet

Low Noise Low Dropout Regulator

No Preview Available !

NCP4680
VIN VOUT VIN
VOUT
Vref Vref
Current Limit
CE
CE
GND
Current Limit
NCP4680Hxxxx
NCP4680Dxxxx
Figure 2. Simplified Schematic Block Diagram
GND
PIN FUNCTION DESCRIPTION
Pin No.
XDFN4*
Pin No.
SC70
Pin No.
SOT23
Pin Name
Description
1
4
5
VOUT
Output pin
2
3
2
GND
Ground
3 1 3 CE Chip enable pin (Active “H”)
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.
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation XDFN0808
VIN
VOUT
VCE
IOUT
6.0
0.3 to VIN + 0.3
6.0
180
286
V
V
V
mA
mW
Power Dissipation SC70
Power Dissipation SOT23
PD 380
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 Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to ELECTRICAL CHARACTERISTIS 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 AECQ100002 (EIA/JESD22A114)
ESD Machine Model tested per AECQ100003 (EIA/JESD22A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
http://onsemi.com
2
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Part Number NCP4680
Description Low Noise Low Dropout Regulator
Maker ON Semiconductor
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