NCV4279B
5.0 V Micropower 150 mA
LDO Linear Regulator with
DELAY, Adjustable RESET,
and Monitor FLAG
The NCV4279B is a 5.0 V precision micropower voltage regulator.
The output current capability is 150 mA.
The output voltage is accurate within
鹵2.0%
with a maximum
dropout voltage of 0.6 V at 150 mA. Low quiescent current is a feature
drawing only 90
mA
with a 100
mA
load. This part is ideal for any and
all battery operated microprocessor equipment.
Microprocessor control logic includes an active RESET (with
DELAY), and a FLAG monitor which can be used to provide an early
warning signal to the microprocessor of a potential impending RESET
signal. The use of the FLAG monitor allows the microprocessor to
finish any signal processing before the RESET shuts the
microprocessor down.
The active RESET circuit operates correctly at an output voltage as
low as 1.0 V. The RESET function is activated during the power up
sequence or during normal operation if the output voltage drops
outside the regulation limits.
The reset threshold voltage can be decreased by the connection of
external resistor divider to R
ADJ
lead.
The regulator is protected against reverse battery, short circuit, and
thermal overload conditions. The device can withstand load dump
transients making it suitable for use in automotive environments. The
device has also been optimized for EMC conditions.
Features
鈥?/div>
5.0 V
鹵
2.0% Output
鈥?/div>
Low 90
mA
Quiescent Current
鈥?/div>
Active RESET
鈥?/div>
Adjustable Reset
鈥?/div>
150 mA Output Current Capability
鈥?/div>
Fault Protection
鈭?/div>
+60 V Peak Transient Voltage
鈭?/div>
鈭?5 V Reverse Voltage
鈭?/div>
Short Circuit
鈭?/div>
Thermal Overload
鈥?/div>
Early Warning through FLAG/MON Leads
鈥?/div>
Internally Fused Leads in SO鈭?4 and SO鈭?0L Packages
鈥?/div>
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
http://onsemi.com
MARKING DIAGRAMS
8
8
1
SO鈭?
D SUFFIX
CASE 751
14
14
1
SO鈭?4
D SUFFIX
CASE 751A
1
20
20
1
SO鈭?0L
DW SUFFIX
CASE 751D
NCV4279B
AWLYYWW
1
NCV4279B
AWLYWW
4279B
ALYW
1
A
= Assembly Location
WL, L = Wafer Lot
YY, Y
= Year
WW, W = Work Week
PIN CONNECTIONS
SO鈭?
V
IN
MON
R
ADJ
DELAY
SO鈭?4
1
R
ADJ
DELAY
GND
GND
GND
NC
RESET
1
R
ADJ
DELAY
NC
GND
GND
GND
GND
NC
NC
RESET
14
MON
V
IN
GND
GND
GND
V
OUT
FLAG
20
MON
V
IN
NC
GND
GND
GND
GND
NC
V
OUT
FLAG
1
8
V
OUT
FLAG
RESET
GND
SO鈭?0L
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
漏
Semiconductor Components Industries, LLC, 2003
1
August, 2003 鈭?Rev. 1
Publication Order Number:
NCV4279B/D
NCV4279BD1R2相關(guān)型號(hào)PDF文件下載
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