NCP4687 Datasheet, PDF (1/18 Pages) ON Semiconductor – 500 mA, High PSRR, LDO Linear Voltage Regulator

NCP4687
500 mA, High PSRR, LDO
Linear Voltage Regulator
The NCP4687 is a CMOS 500 mA LDO linear voltage regulator
with high output voltage accuracy which features a high ripple
rejection, low supply current with low dropout and chip enable with
built−in low R_DS(on) NMOS transistor for fast output capacitor
discharging as option. The device is composed of the voltage reference
unit, error amplifier, resistor divider for output voltage sensing or
precise output voltage setting. The current limit and thermal shutdown
makes the device very suitable for industrial applications and portable
communication equipments.
Features
• Operating Input Voltage Range: 2.5 V to 5.25 V
• Output Voltage Range: 0.7 to 3.6 V (available in 0.1 V steps)
• ±0.8% Output Voltage Accuracy @ V_out > 1.8 V
• Output noise : 40 mV_rms
• Line Regulation: 0.02%/V
• Current Limit Circuit
• High PSRR: 75 dB at 1 kHz, 70 dB at 10 kHz
• Thermal Shutdown
• Available in SOT−23−5, SOT−89−5 and uDFN 1.2 x 1.2 mm
Packages
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Home Appliances, Industrial Equipment
• DVB−T and DVB−S Receivers
• Car Audio Equipment, Navigation Systems
• Notebook Adaptors, LCD TVs, Cordless Phones and Private LAN
Systems
NCP4687x
VIN
VIN
VOUT
VOUT
C1
1.0 mF
CE
SENSE
GND
C2
1.0 mF
http://onsemi.com
MARKING
DIAGRAMS
SOT89−5
CASE 528AB
1
XXX
XZZ
XDFN6
CASE 711AH
XX
MM
1
SOT−23−5
CASE 1212
XXXMM
1
XX, XXX= Specific Device Code
ZZ
= Lot Code
MM = Date Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2014
1
December, 2014 − Rev. 3
Publication Order Number:
NCP4687/D