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ON - Ultra Low Noise 150 mA Low Dropout Voltage Regulator with ON/OFF Control

Numéro de référence NCP623
Description Ultra Low Noise 150 mA Low Dropout Voltage Regulator with ON/OFF Control
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NCP623 fiche technique
NCP623
Ultra Low Noise
150 mA Low Dropout
Voltage Regulator with
ON/OFF Control
Housed in a Micro8t or QFN6 package, the NCP623 delivers up to
150 mA where it exhibits a typical 180 mV dropout. With an
incredible noise level of 25 mVRMS (over 100 Hz to 100 kHz, with a
10 nF bypass capacitor), the NCP623 represents the ideal choice for
sensitive circuits, especially in portable applications where noise
performance and space are premium. The NCP623 also excels in
response time and reacts in less than 25 ms when receiving an OFF to
ON signal (with no bypass capacitor).
Due to a novel concept, the NCP623 accepts output capacitors without
any restrictions regarding their Equivalent Series Resistance (ESR) thus
offering an obvious versatility for immediate implementation.
With a typical DC ripple rejection better than −90 dB (−70 dB @
1.0 kHz), it naturally shields the downstream electronics against
choppy power lines.
Additionally, thermal shutdown and short−circuit protection
provide the final product with a high degree of ruggedness.
Features
Very Low Quiescent Current 170 mA (ON, no load), 100 nA
(OFF, no load)
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 mVrms over 100 Hz to 100 kHz
Internal Thermal Shutdown
Extremely Tight Line Regulation Typically −90 dB
Ripple Rejection −70 dB @ 1.0 kHz
Line Transient Response: 1.0 mV for DVin = 3.0 V
Extremely Tight Load Regulation, Typically 20 mV at DIout = 150 mA
Multiple Output Voltages Available
Logic Level ON/OFF Control (TTL−CMOS Compatible)
ESR can vary from 0 to 3.0 W
Applications
All Portable Systems, Battery Powered Systems, Cellular
Telephones, Radio Control Systems, Toys and Low Voltage Systems
http://onsemi.com
MARKING
DIAGRAMS
8
Micro8
DM SUFFIX
CASE 846A
XXX
AYW
1
1
QFN6, 3X3
NCP6
MN SUFFIX
23yy
1
CASE 488AE
ALYW
XXX
yy
A
L
Y
W
= Specific Device Code
= Voltage Option
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN CONNECTIONS
Bypass
NC
NC
ON/OFF
18
27
36
45
Micro8
(Top View)
VOUT
GND
GND
VIN
VIN
GND
VOUT
16
25
34
ON/OFF
GND
Bypass
QFN6
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
© Semiconductor Components Industries, LLC, 2004
August, 2004 − Rev. 0
1
Publication Order Number:
NCP623/D

PagesPages 14
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