NCV47701 Datasheet, PDF (1/12 Pages) ON Semiconductor – 5 V to 20 V Adjustable Low Dropout Regulator with Adjustable Current Limit

NCV47701
5 V to 20 V Adjustable Low
Dropout Regulator with
Adjustable Current Limit
The NCV47701 is a 350 mA output current integrated low dropout
regulator designed for use in harsh automotive environments. It
includes wide operating temperature and input voltage ranges. The
device is offered with adjustable voltage versions available in 3%
output voltage accuracy. It has a high peak input voltage tolerance and
reverse input voltage protection. It also provides overcurrent
protection, overtemperature protection and enable for control of the
state of the output voltage. The integrated current sense feature
provides diagnosis and system protection functionality. The current
limit of the device is adjustable by resistor connected to CSO pin.
Voltage on CSO pin is proportional to output current.
Features
• Adjustable Voltage Version (from 5 V to 20 V) ± 3% Output Voltage
for ±6% Output Voltage Accuracy see NCV47700 Specification
• Enable Input (5 V Logic Compatible Thresholds)
for 3.3 V Logic Compatible Thresholds see NCV47710 or
NCV47711 Specification
• Adjustable Current Limit (from 10 mA to 350 mA) with 10%
accuracy
• Protection Features:
♦ Current Limitation
♦ Thermal Shutdown
♦ Reverse Input Voltage
• This is a Pb−Free Device
Typical Applications
• Audio and Infotainment System
• Instrument Cluster
• Navigation
• Satellite Radio
C _in
1 mF
Vin
Vout
NCV47701 ADJ
EN
CSO
GND
Cb*
R1
C out
R2
22 mF
C _CSO
1 mF
R _CSO
*Required if usage of low ESR output capacitor C_out is demand, see
Regulator Stability Considerations section.
Figure 1. Application Schematic
http://onsemi.com
8
1
8
1
A
L
Y
W
G
SOIC−8
Exposed Pad
PD SUFFIX
CASE 751AC
MARKING
DIAGRAMS
8
47701
ALYW
G
1
SOIC−8
D SUFFIX
CASE 751
8
47701
ALYW
G
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PIN CONNECTIONS
1
ADJ
8
V_out
GND
NC
EN
NC
CSO
V_in
SOIC−8 EP, SOIC−8
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
1
November, 2012 − Rev. 2
Publication Order Number:
NCV47701/D