NCP561
150 mA CMOS Low Iq Low-Dropout Voltage Regulator
The NCP561 series of fixed output low dropout linear regulators...
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 ultralow 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-miniature TSOP-5 surface mount package. Standard
voltage versions are 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V and 5.0 V.
Features
ăLow Quiescent Current of 3.0 mA Typical ăLow Dropout
Voltage of 170 mV at 150 mA ăLow Output
Voltage Option ăOutput
Voltage Accuracy of 2.0% ăIndustrial Temperature Range of -40°C to 85°C ăPb-Free Packages are Available
Typical Applications
ăBattery Powered Instruments ăHand-Held Instruments ăCamcorders and Cameras
VIN 1
Thermal Shutdown
Driver w/ Current
Limit
Enable ON 3
VOUT 5
OFF
GND 2
This device contains 28 active transistors
Figure 1. Representative Block Diagram
http://onsemi.com
5 1
TSOP-5 SN SUFFIX CASE 483
PIN CONNECTIONS AND MARKING DIAGRAM
XXXAYWG G
VIN 1 GND 2
5 VOUT
Enable 3
4 N/C
(Top View)
XXX A Y W G
= Specific Device Code = Assembly Location = Year...
