Dropout Regulator. NCP4686 Datasheet

NCP4686 Regulator. Datasheet pdf. Equivalent

Part NCP4686
Description Low Dropout Regulator
Feature NCP4686 400 mA, High Accuracy, Low Input Voltage, Low Dropout Regulator The NCP4686 is CMOS Linear .
Manufacture ON Semiconductor
Total Page 17 Pages
Datasheet
Download NCP4686 Datasheet



NCP4686
NCP4686
400 mA, High Accuracy,
Low Input Voltage, Low
Dropout Regulator
The NCP4686 is CMOS Linear voltage regulators with 400 mA
output current capability. The device has very high output voltage
accuracy, low supply current and low ONresistance transistor. The
NCP4686 is easy to use and includes output current foldback
protection and a fully integrated constant slope circuit as a softstart
circuit. Due to it inrush current is minimized and no output voltage
overshoots are there. A Chip Enable function is included to save
power by lowering supply current.
Features
Operating Input Voltage Range: 1.0 V to 3.6 V
Output Voltage Range: 0.7 V to 1.8 V (available in 0.1 V steps)
Output Voltage Accuracy: ±0.8% (VOUT 1.0 V, TA = 25°C)
Supply Current: 48 mA
Dropout Voltage: 0.22 V (VOUT = 1.5 V)
Line Regulation: 0.1%/V Typ.
Ripple Rejection: Typ. 60 dB (f = 10 kHz)
Stable with Ceramic Capacitors: 1 mF or more
Current Fold Back Protection
Buildin Constant Slope Circuit
Available in XDFN6 1.2 x 1.2 mm, SC70, SOT23 Packages
These are PbFree Devices
Typical Applications
Batterypowered Equipment
Networking and Communication Equipment
Cameras, DVRs, STB and Camcorders
Home Appliances
VIN NCP4686x VOUT
VIN VOUT
CE
C1
1m
GND
C2
1m
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MARKING
DIAGRAMS
SC70
CASE 419A
XXX
XMM
1
SOT235
CASE 1212
XXXMM
1
XDFN6
CASE 711AA
XX
MM
1
XX, XXX, XXXX = 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 14 of this data sheet.
Figure 1. Typical Application Schematics
© Semiconductor Components Industries, LLC, 2012
February, 2012 Rev. 1
1
Publication Order Number:
NCP4686/D



NCP4686
NCP4686
VIN VOUT VIN
VOUT
Vref Vref
Current Limit
CE
CE
GND
Current Limit
NCP4686Hxxxx
NCP4686Dxxxx
Figure 2. Simplified Schematic Block Diagram
GND
PIN FUNCTION DESCRIPTION
Pin No.
XDFN6
Pin No.
SC70
Pin No.
SOT23
Pin Name
Description
6
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
1 2 4 NC No connection
5 − − NC No connection
*Please refer to package dimensions section on Page 15 on this data sheet for pin numbers associated with different package.
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation XDFN1212
Power Dissipation SC70
VIN
VOUT
VCE
IOUT
PD
4.0
0.3 to VIN + 0.3
0.3 to 4.0
500
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
Operating Ambient Temperature Range
TA
40 to +85
°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.
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