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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/OFF
Over-current protection VOUT
Constant Current
Reference voltage
ADJ Thermal shut down Triming GND
2
Data Sheet G18852EJ1V0DS
μ PD121WxxA Series
ORDERING INFORMATION
Part Number Package 5-PIN TO-252 (5-PIN MP-3ZK) 5-PIN TO-252 (5-PIN MP-3ZK) 5-PIN TO-252 (5-PIN MP-3ZK) 5-PIN TO-252 (5-PIN MP-3ZK) Output Voltage 1.8 V 2.5 V 3.3 V 1.8 to 3.3 V Type Fixed Fixed Fixed Adjustable Marking 121W18 121W25 121W33 121W00
μ PD121W18AT1F μ PD121W25AT1F μ PD121W33AT1F μ PD121W00AT1F
Remark Since it is the tape-packaged product, “-E1” or “-E2” is added to the end of its product name.
Part Number Package
Note
Package Type • 16 mm wide embossed taping • Pin 1 on draw-out side • 2,500 pcs/reel
μ PD121W18AT1F-E1-AT
5-PIN TO-252 (5-PIN MP-3ZK)
μ PD121W18AT1F-E2-AT
Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 at take-up side • 2,500 pcs/reel
μ PD121W25AT1F-E1-AT Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 on draw-out side • 2,500 pcs/reel
μ PD121W25AT1F-E2-AT Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 at take-up side • 2,500 pcs/reel
μ PD121W33AT1F-E1-AT
Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 on draw-out side • 2,500 pcs/reel
μ PD121W33AT1F-E2-AT Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 at take-up side • 2,500 pcs/reel
μ PD121W00AT1F-E1-AT Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 on draw-out side • 2,500 pcs/reel
μ PD121W00AT1F-E2-AT
Note
5-PIN TO-252 (5-PIN MP-3ZK)
• 16 mm wide embossed taping • Pin 1 at take-up side • 2,500 pcs/reel
Note Pb-free (This product does not contain Pb in the external electrode and other parts.)
Data Sheet G18852EJ1V0DS
3
μ PD121WxxA Series
ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specified)
Parameter Input Voltage ON/OFF Pin Voltage Internal Power Dissipation (TC = 25°C) Operating Ambient Temperature Operating Junction Temperature Storage Temperature Thermal Resistance (junction to ambient) Thermal Resistance (junction to case)
Note
Symbol VIN VON/OFF PT TA TJ Tstg Rth(J-A) Rth(J-C)
Rating −0.3 to +6.0 −0.3 to VIN 10 −40 to +85 −40 to +150 −55 to +150 125 12.5
Unit V V W °C °C °C °C/W °C/W
Note Internally limited. When the operating junction temperature rises above 150°C, the internal circuit shuts down the output voltage. Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded.
TYPICAL CONNECTION
μ PD121W18A, μ PD121W25A, μ PD121W33A
ON/OFF D1
INPUT INPUT CIN
μ PD121W18A, 25A, 33A
OUTPUT OUTPUT COUT D2
GND
GND
μ PD121W00A
ON/OFF D1
INPUT
INPUT
μ PD121W00A
OUTPUT OUTPUT R1 D2 ADJ
GND
CIN GND
COUT
R2
4
Dat.