NCV8508B Datasheet, PDF (1/22 Pages) ON Semiconductor – 5.0 V and 3.3 V, 250 mA LDO with Watchdog and RESET

NCV8508B
5.0 V and 3.3 V, 250 mA
LDO with Watchdog and
RESET
The NCV8508B is a precision micropower Low Dropout (LDO)
voltage regulator. The part contains many of the required features for
powering microprocessors. Its robustness makes it suitable for severe
automotive environments. In addition, the NCV8508B is ideal for use
in battery operated, microprocessor controlled equipment because of
its extremely low quiescent current.
Features
• Output Voltage: 5.0 V and 3.3 V
• ±3.0% Output Voltage
• I_OUT Up to 250 mA
• Quiescent Current Independent of Load
• Micropower Compatible Control Functions:
♦ Wakeup
♦ Watchdog
♦ RESET
• Low Quiescent Current (100 mA typ)
• Protection Features:
♦ Thermal Shutdown
♦ Short Circuit
♦ 45 V Operation
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Controls
• AEC Qualified
• PPAP Capable
• These are Pb−Free Devices
MRA4004T3
V_BAT
NCV8508B
C1* ^VIN
0.1 mF
V_OUT
WDI
Delay RESET
R_Delay
60 k
WAKEUP
GND
C2
V_DD
1.0 mF
I/O
RESET
I/O
http://onsemi.com
MARKING
DIAGRAMS
D²PAK−7
DS SUFFIX
CASE 936AB
V8508yBxx
AWLYWWG
1
8
1
SO−8 EP
PD SUFFIX
CASE 751AC
8
508yBx
ALYW
G
1
xx, x = Voltage Option
5.0 V (xx = 50, x = 5)
3.3 V (xx = 33, x = 3)
y
= Timing Option
(see Page 4 for more details)
1 (Delay Time = 3 ms @ R_Delay = 60k)
2 (Delay Time = 9 ms @ R_Delay = 60k)
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 20 of this data sheet.
*C1 required if regulator is located far from power supply filter.
Figure 1. Application Circuit
© Semiconductor Components Industries, LLC, 2011
1
March, 2011 − Rev. 3
Publication Order Number:
NCV8508B/D