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 Products > Analog - Regulators > Linear Regulators - Low Dropout Voltage > Positive Voltage - Fixed > LP3962

LP3962  Product Folder

1.5A Fast Ultra Low Dropout Linear Regulator
  

See Also:		   
LP3872 - UTILIZES SMALLER INPUT AND OUTPUT CAPACITORS
     LP3852 - HAS ONLY HALF THE DROPOUT VOLTAGE
     LP3882 - FOR INPUT VOLTAGES AS LOW AS 1.5V, 1.8V, 2.0V AND 2.5V
Generic P/N 3962
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics		 Application
Notes

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 125 
Multiple Output Capability No 
On/Off Pin Yes 
Error Flag Yes 
InputMin Voltage (Volt) 2.50 
InputMax Voltage (Volt) 7 
Output Current (mA) 1500 
Dropout Voltage (Volt) .38 
Quiescent Current (mA) 4 
SecondaryOutput Voltage (Volt) - 
SecondaryOutput Current (Amp) - 
RegType LDO 
Output Voltage (Volt) 1.80, 2.50, 3.30, 5 
Watchdog No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LP3962 LP3965 1.5A Fast Ultra Low Dropout Linear Regulators 532 Kbytes 29-May-03 View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LP3962EMP-1.8SOT-2235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.21reel
of
1000		XYTT
LBCB
15-17 weeks50000
LP3962EMP-2.5SOT-2235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.21reel
of
1000		XYTT
LBDB
15-17 weeks50000
LP3962EMP-3.3SOT-2235StatusFull productionN/AN/ASamples1K+$1.21reel
of
1000		XYTT
LBEB
15-17 weeks50000
LP3962EMP-5.0SOT-2235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.21reel
of
1000		XYTT
LBTB
15-17 weeks50000
LP3962EMPX-1.8SOT-2235StatusFull productionN/AN/A 1K+$1.21reel
of
2000		XYTT
LBCB
15-17 weeks50000
LP3962EMPX-2.5SOT-2235StatusFull productionN/AN/A 1K+$1.21reel
of
2000		XYTT
LBDB
15-17 weeks50000
LP3962EMPX-3.3SOT-2235StatusFull productionN/AN/A 
Buy Now		1K+$1.21reel
of
2000		XYTT
LBEB
15-17 weeks50000
LP3962EMPX-5.0SOT-2235StatusFull productionN/AN/A 1K+$1.21reel
of
2000		XYTT
LBTB
15-17 weeks25000
LP3962ET-1.8TO 2205StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ET
-1.8
12-14 weeks50000
LP3962ET-2.5TO 2205StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ET
-2.5
12-14 weeks50000
LP3962ET-3.3TO 2205StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ET
-3.3
12-14 weeks50000
LP3962ET-5.0TO 2205StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ET
-5.0
12-14 weeks50000
LP3962ES-1.8TO 2635StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ES
-1.8
13-15 weeks50000
LP3962ES-2.5TO 2635StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ES
-2.5
13-15 weeks25000
LP3962ES-3.3TO 2635StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$1.37rail
of
45		NSUZXYTT
LP3962ES
-3.3
12-14 weeks50000
LP3962ES-5.0TO 2635StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.37rail
of
45		NSUZXYTT
LP3962ES
-5.0
13-15 weeks50000
LP3962ESX-1.8TO 2635StatusFull productionN/AN/A 
Buy Now		1K+$1.37reel
of
500		NSUZXYTT
LP3962ES
-1.8
12-14 weeks50000
LP3962ESX-2.5TO 2635StatusFull productionN/AN/A 
Buy Now 		1K+$1.37reel
of
500		NSUZXYTT
LP3962ES
-2.5
13-15 weeks50000
LP3962ESX-3.3TO 2635StatusFull productionN/AN/A 
Buy Now 		1K+$1.37reel
of
500		NSUZXYTT
LP3962ES
-3.3
12-14 weeks50000
LP3962ESX-5.0TO 2635StatusFull productionN/AN/A 1K+$1.37reel
of
500		NSUZXYTT
LP3962ES
-5.0
12-14 weeks50000

General Description

The LP3962/LP3965 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very fast to step changes in load which makes them suitable for low voltage microprocessor applications. The LP3962/LP3965 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3962/LP3965 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 38mV at 150mA load current and 380mV at 1.5A load current.

Ground Pin Current: Typically 5mA at 1.5A load current.

Shutdown Mode: Typically 15µA quiescent current when the shutdown pin is pulled low.

Error# Flag: Error# flag goes low when the output voltage drops 10% below nominal value (for LP3962).

SENSE: Sense pin improves regulation at remote loads. (For LP3965)

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3965), with a guaranteed accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

Features

  • Ultra low dropout voltage
  • Low ground pin current
  • Load regulation of 0.04%
  • 15µA quiescent current in shutdown mode
  • Guaranteed output current of 1.5A DC
  • Available in SOT-223,TO-263 and TO-220 packages
  • Output voltage accuracy ± 1.5%
  • Error# flag indicates output status (LP3962)
  • Sense option improves better load regulation (LP3965)
  • Extremely low output capacitor requirements
  • Overtemperature/overcurrent protection
  • -40°C to +125°C junction temperature range

Applications

  • Microprocessor power supplies
  • GTL, GTL+, BTL, and SSTL bus terminators
  • Power supplies for DSPs
  • SCSI terminator
  • Post regulators
  • High efficiency linear regulators
  • Battery chargers
  • Other battery powered applications

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LP3962EMP-1.8CS06508800006000006169643205
LP3962EMP-2.5CS06508800006000006169643205
LP3962EMP-3.3CS06508800006000006169643205
LP3962EMP-5.0CS06508800006000006169643205
LP3962EMPX-1.8CS06508800006000006169643205
LP3962EMPX-2.5CS06508800006000006169643205
LP3962EMPX-3.3CS06508800006000006169643205
LP3962EMPX-5.0CS06508800006000006169643205
LP3962ES-1.8CS06508800006000006169643205
LP3962ES-2.5CS06508800006000006169643205
LP3962ES-3.3CS06508800006000006169643205
LP3962ES-5.0CS06508800006000006169643205
LP3962ESX-1.8CS06508800006000006169643205
LP3962ESX-2.5CS06508800006000006169643205
LP3962ESX-3.3CS06508800006000006169643205
LP3962ESX-5.0CS06508800006000006169643205
LP3962ET-1.8CS06508800006000006169643205
LP3962ET-2.5CS06508800006000006169643205
LP3962ET-3.3CS06508800006000006169643205
LP3962ET-5.0CS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


Application Notes

TitleSize in KbytesDate
View Online
Download
Receive via Email
AN-1148: Application Note 1148 Linear Regulators: Theory of Operation and Compensation 200 Kbytes 25-Sep-02 View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 15-Jan-2004]

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