NCP508MT30TBG datasheet(1/15 Pages) ONSEMI

Part #	NCP508MT30TBG

Description	Very Low Noise, Fast Turn On, 50 mA Low Dropout Voltage Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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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

http://onsemi.com

(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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