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NCP508 Datasheet(PDF) 1 Page - ON Semiconductor

No. de Pieza. NCP508
Descripción  Very Low Noise, Fast Turn On, 50 mA Low Dropout Voltage Regulator
Descarga  15 Pages
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Fabricante  ONSEMI [ON Semiconductor]
Página de inicio  http://www.onsemi.com
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NCP508 Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2011
January, 2011 − Rev. 5
1
Publication Order Number:
NCP508/D
NCP508
Very Low Noise, Fast Turn
On, 50 mA Low Dropout
Voltage Regulator
The NCP508 is a 50 mA low noise voltage regulator, designed to
exhibit fast turn on time and high ripple rejection. 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 NCP508 has been designed for use with ceramic capacitors.
The device is housed in SC−88A and WDFN6 1.5x1.5 packages.
Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3. Other
voltages are available in 100 mV steps.
Features
Very Low Noise at 39 mVrms without a Bypass Capacitor
High Ripple Rejection of 70 dB at 1 kHz
Low Dropout Voltage of 140 mV (typ) at 30 mA
Tight Load Regulation, typically 6 mV for DIout = 50 mA
Fast Enable Turn−On time of 20 msec
Logic Level Enable
ESR can vary from a few mW to 3 W
These are Pb−Free Devices
Typical Applications
RF Subsystems in Handsets
Noise Sensitive Circuits; VCOs, PLL
Vout
Battery or
Unregulated
Voltage
C1
1m
C2
1m
OFF
ON
1
2
3
5
4
Figure 1. Typical Application Diagram
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
ORDERING INFORMATION
PIN CONNECTIONS
1
3
NC
Vin
2
GND
Enable
4
Vout
5
SC−88A
(Top View)
XXX
= Specific Device Code
M
= Date Code*
G
= Pb−Free Package
MARKING
DIAGRAM
http://onsemi.com
1 2
3
4
5
SC70−5/SC−88A/SOT−353
SQ SUFFIX
CASE 419A
1
5
xxx MG
G
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(Note: Microdot may be in either location)
*Date Code orientation and/or position may
vary depending upon manufacturing location.
1
3
Enable
Vout
2
NC
GND
4
Vin
6
WDFN6
(Top View)
WDFN6
MN SUFFIX
CASE 511BJ
X
= Specific Device Code
M
= Date Code
G
= Pb−Free Package
NC
5
X MG
G
1
(Note: Microdot may be in either location)


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