NCP4632 Datasheet, PDF (1/14 Pages) ON Semiconductor – 3A, Low Voltage, Low Dropout Linear Voltage Regulator with Reverse Current Protection

NCP4632
3A, Low Voltage, Low
Dropout Linear Voltage
Regulator with Reverse
Current Protection
The NCP4632 is a CMOS Linear voltage regulator with high output
current capability (up to 3 A). This device can provide output voltages
as low as 0.8 V while maintaining a low dropout voltage of 510 mV
typ. at full load. The NCP4632 is designed to draw only 350 mA of
supply current and less than 1 mA in standby mode to minimize current
consumption for battery operated applications. The device has a high
accuracy output voltage of ±1% along with soft−start and reverse
current protection circuits to protect the device and the application.
The NCP4632 is available in a Pb−Free DPAK−5 package in both
fixed and adjustable output voltage options. The output voltage for the
fixed options can be modified in 0.1 V steps from 0.8 V to 4.2 V
Please contact your sales office for any additional fixed voltage
outputs to those already listed.
Features
• Operating Input Voltage Range: 1.6 V to 5.25 V
• Output Voltage Range: 0.8 to 4.5 V (0.1 V steps for fixed options)
• Supply current: Typical Operation Mode − 350.0 mA
Standby Mode
− 1.0 mA
• Dropout Voltage:
150 mV Typ. at I_OUT = 1 A, V_OUT = 2.5 V
510 mV Typ. at I_OUT = 3 A, V_OUT = 2.5 V
• ±1% Output Voltage Accuracy
• Line Regulation 0.15%/V Typ.
• Current Fold Back Protection Typ. 220 mA
• Stable with Ceramic Capacitors
• Available in DPAK−5 Package (TO252−5)
• These are Pb−Free Devices
Typical Applications
• Battery Powered Equipments
• Portable Communication Equipments
• Cameras, VCRs and Camcorders
• Home appliances
http://onsemi.com
MARKING
DIAGRAMS
DPAK−5
CASE 369AE
E1Jxx1
yy zz
123 45
xx
= Specific Device Code
YY
= B − Without Active Discharge
= D − With Active Discharge
zz
= Lot Number
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
VIN
C1
10m
NCP4632 (Fixed)
VIN
VOUT
CE
SENSE
GND
VOUT VIN
C2
C1
10m
10m
NCP4632 (Adj)
VIN
VOUT
CE
VADJ
GND
R1 ^VOUT
C2
R2 10m
Figure 1. Typical Application Schematics
© Semiconductor Components Industries, LLC, 2012
1
June, 2012 − Rev. 0
Publication Order Number:
NCP4632/D