NCV4949C Datasheet, PDF (1/10 Pages) ON Semiconductor – Low Dropout Voltage Regulator

NCV4949C
100 mA, 5.0 V, Low Dropout
Voltage Regulator with
Reset and Sense
The NCV4949C is a monolithic integrated 5.0 V voltage regulator
with a very low dropout and additional functions such as reset and an
uncommitted voltage sense comparator.
It is designed for supplying microcontroller/microprocessor
controlled systems particularly in automotive applications. The
NCV4949C has improved reset behavior for lower input and output
voltage levels.
Features
• Operating DC Supply Voltage Range 5.5 V to 40 V
• High Precision Output Voltage 5.0 V ±1%
• Output Current Capability Up to 100 mA
• Very Low Dropout Voltage Less Than 0.4 V
• Reset Circuit Sensing The Output Voltage
• Programmable Reset Pulse Delay
• Voltage Sense Comparator
• Fault Protection, +60 V Peak Transient Voltage, −40 V Reverse
Voltage, Short Circuit, Thermal Overload
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
• These are Pb−Free Devices
Supply
Voltage (V_CC)
1
Output
Voltage (V_out) 8
NC 3
C_T 4
2.0 mA
Reset
6
Sense
Input (S_i)
2
Regulator
Reset
1.25 V
V_ref
2.0 V
Sense
5 GND
Figure 1. Representative Block Diagram
Sense
Output
(S_o)
7
www.onsemi.com
8
1
SOIC−8
D SUFFIX
CASE 751−07
MARKING
DIAGRAMS
8
V4949C
ALYW
G
1
8
8
1
SOIC−8 EP
PD SUFFIX
CASE 751AC
V4949C
ALYWG
G
1
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb−Free Device
(Note: Microdot may be in either location)
PIN CONNECTIONS
V_CC 1
S_i 2
NC 3
C_T 4
(Top View)
8 V_out
7 S_o
6 Reset
5 GND
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
December, 2015 − Rev. 0
Publication Order Number:
NCV4949C/D