NCP561
150 mA CMOS Low Iq
Low-Dropout Voltage
Regulator
The NCP561 series of fixed output low dropout linear regulators are
designed for handheld communication equipment and portable battery
powered applications which require low quiescent. The NCP561
series features an ultra鈥搇ow quiescent current of 3.0
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 NCP561 has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 1.0
mF.
The
device is housed in the micro鈥搈iniature TSOP鈥? surface mount
package. Standard voltage versions are 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3
and 5.0 V.
Features
http://onsemi.com
5
1
TSOP鈥?
(SOT23鈥?, SC59鈥?)
SN SUFFIX
CASE 483
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low Quiescent Current of 3.0
mA
Typical
Low Dropout Voltage of 170 mV at 150 mA
Low Output Voltage Option
Output Voltage Accuracy of 2.0%
Industrial Temperature Range of 鈥?0擄C to 85擄C
PIN CONNECTIONS AND
MARKING DIAGRAM
V
in
Gnd
Enable
1
xxxYW
4
N/C
2
3
5
V
OUT
Typical Applications
鈥?/div>
Battery Powered Instruments
鈥?/div>
Hand鈥揌eld Instruments
鈥?/div>
Camcorders and Cameras
xxx = Version
Y = Year
W = Work Week
(Top View)
V
IN
1
Thermal
Shutdown
Driver w/
Current
Limit
5
V
OUT
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
Enable
ON
OFF
3
Gnd
2
This device contains 28 active transistors
Figure 1. Representative Block Diagram
漏
Semiconductor Components Industries, LLC, 2002
1
May, 2002 鈥?Rev. 3
Publication Order Number:
NCP561/D
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