NCP551, NCV551
150 mA CMOS Low Iq
Low鈭扗ropout Voltage
Regulator
The NCP551 series of fixed output low dropout linear regulators are
designed for handheld communication equipment and portable battery
powered applications which require low quiescent. The NCP551
series features an ultra鈭抣ow quiescent current of 4.0
mA.
Each device
contains a voltage reference unit, an error amplifier, a PMOS power
transistor, resistors for setting output voltage, current limit, and
temperature limit protection circuits.
The NCP551 has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 0.1
mF.
The
device is housed in the micro鈭抦iniature TSOP鈭? surface mount
package. Standard voltage versions are 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.2,
3.3, and 5.0 V. Other voltages are available in 100 mV steps.
Features
http://onsemi.com
5
1
TSOP鈭?
(SOT23鈭?, SC59鈭?)
SN SUFFIX
CASE 483
PIN CONNECTIONS AND
MARKING DIAGRAM
V
in
GND
Enable
1
xxxYW
2
3
5
V
out
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low Quiescent Current of 4.0
mA
Typical
Maximum Operating Voltage of 12 V
Low Output Voltage Option
High Accuracy Output Voltage of 2.0%
Industrial Temperature Range of 鈭?0擄C to 85擄C
(NCV551, T
A
= 鈭?0擄C to +125擄C)
鈥?/div>
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
鈥?/div>
Pb鈭扚ree Packages are Available
Typical Applications
4
N/C
xxx = Version
Y = Year
W = Work Week
(Top View)
鈥?/div>
Battery Powered Instruments
鈥?/div>
Hand鈭扝eld Instruments
鈥?/div>
Camcorders and Cameras
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
V
in
1
Thermal
Shutdown
Driver w/
Current
Limit
5
V
out
Enable
ON
OFF
3
GND
2
Figure 1. Representative Block Diagram
漏
Semiconductor Components Industries, LLC, 2004
1
August, 2004 鈭?Rev. 9
Publication Order Number:
NCP551/D
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