NCP623
Ultra Low Noise
150 mA Low Dropout
Voltage Regulator with
ON/OFF Control
http://onsemi.com
The NCP623 low dropout linear regulator can deliver up to 150 mA
of output current with a typical dropout voltage of 180 mV. This low
dropout feature helps to maintain a regulated output voltage for a
longer period of time as the lifetime of the battery decreases.
MARKING
DIAGRAMS
8
It is the ideal choice for noise sensitive environments like portable
applications where noise performance and space are at a premium. The
Micro8
DM SUFFIX
CASE 846A
Lxx
AYW G
G
typical output noise voltage specification is 25 mV . The space
RMS
1
saving package choices include a Micro8™ or DFN6. An additional
noise saving feature of this device is its ability to filter choppy signals
on the power supply by providing a typical DC ripple rejection of
−90 dB and −70 dB at 1.0 kHz.
The NCP623 is designed to work with very low ESR capacitors such
as ceramic capacitors which are common in the industry now.
Additional features such as thermal shutdown and short−circuit
protection provide for a robust system design.
1
NCP6
23yy
ALYW G
G
DFN6, 3X3
MN SUFFIX
CASE 488AE
1
Lxx
= Device Code (Micro8)
xx = See Ordering Information
Features
NCP623yy = Device Code (DFN6)
yy = 25, 28, 30, 33, 40, or 50
= Assembly Location
• Very Low Quiescent Current 170 mA (ON, no load), 100 nA
(OFF, no load)
A
L
Y
W
G
= Wafer Lot
= Year
= Work Week
= Pb Free Package
• Very Low Dropout Voltage, Typical Value is 137 mV at an Output
Current of 100 mA
• Very Low Noise with External Bypass Capacitor (10 nF),
Typically 25 mV
over 100 Hz to 100 kHz
(Note: Microdot may be in either location)
RMS
• Internal Thermal Shutdown
• Extremely Tight Line Regulation Typically −90 dB
• Ripple Rejection −70 dB @ 1.0 kHz
PIN CONNECTIONS
• Line Transient Response: 1.0 mV for DV = 3.0 V
• Extremely Tight Load Regulation, Typically 20 mV at DI = 150 mA
• Multiple Output Voltages Available
• Logic Level ON/OFF Control (TTL−CMOS Compatible)
• Output Capacitor ESR Can Vary from 0 W to 3.0 W
• Pb−Free Packages are Available
in
V
Bypass
NC
1
8
OUT
out
GND
GND
2
3
4
7
NC
6
5
V
ON/OFF
IN
Micro8
(Top View)
Applications
• All Portable Systems, Battery Powered Systems, Cellular
Telephones, Radio Control Systems, Toys and Low Voltage Systems
ON/OFF
V
1
2
3
6
5
4
IN
GND
GND
Bypass
V
OUT
DFN6
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 14 of
this data sheet.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
September, 2006 − Rev. 7
NCP623/D