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UPD121W1xxA

Part Number	UPD121W1xxA
Manufacturer	NEC
Description	MOS INTEGRATED CIRCUIT
Published	Sep 6, 2007
Detailed Description	www.DataSheet4U.com DATA SHEET MOS INTEGRATED CIRCUIT μ PD121WxxA Series HIGH CURRENT 1.5 A GENERAL-PURPOSE CMOS REGU...
Datasheet	UPD121W1xxA PDF File

Overview

www.
DataSheet4U.
com DATA SHEET MOS INTEGRATED CIRCUIT μ PD121WxxA Series HIGH CURRENT 1.
5 A GENERAL-PURPOSE CMOS REGULATOR DESCRIPTION The μ PD121WxxA series is general-purpose CMOS regulators which have 1.
5 A output current capacity.
These products are suitable for power supply of large-scale ASICs etc.
By ON/OFF function, the power consumption can be kept low level at the time of off-state.
This series of regulator has 3 fixed output voltage type 1.
8 V, 2.
5 V, 3.
3 V, and adjustable output voltage type (1.
8 to 3.
3 V).
FEATURES • Output Current: 1.
5 A • Output Voltage: 1.
8 V, 2.
5 V, 3.
3 V (Fixed type) / 1.
8 to 3.
3 V (Adjustable type) • Output Voltage Tolerance: VO ± 2.
0% (TJ = 25°C) • Dropout Voltage: VDIF = 1.
0 V MAX.
(IO = 1.
5 A) • Quiescent Current: 150 μ A TYP.
(IO = 0 A) • Standby Current: 1 μ A • Available for laminated ceramic capacitor: (Electric capacity 10 μ F or higher) • On-chip over-current protection circuit • On-chip thermal shut down circuit APPLICATIONS These regulators are suitable for large-scale ASICs which are used in digital appliances etc.
PIN CONFIGURATION (Marking Side) 5-PIN TO-252 (5-PIN MP-3ZK) 6 1.
INPUT 2.
ON/OFF 3.
GND Note 1 2 3 4 5 4.
NC / ADJ 5.
OUTPUT 6.
GND (Fin) Note No.
3 pin is cut and can not be connected to substrate.
No.
6 is Fin and common to GND pin.
The information in this document is subject to change without notice.
Before using this document, please confirm that this is the latest version.
Not all products and/or types are available in every country.
Please check with an NEC Electronics sales representative for availability and additional information.
Document No.
G18852EJ1V0DS00 (1st edition) Date Published July 2007 NS Printed in Japan 2007 μ PD121WxxA Series BLOCK DIAGRAM μ PD121W18A, μ PD121W25A, μ PD121W33A VIN ON/OFF − Buffer + − Error amp.
+ ON/OFF Over-current protection Constant Current Reference voltage VOUT Thermal shut down Triming GND μ PD121W00A VIN ON/OFF − Buffer + − Error amp.
+ ON...

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