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LP2975  Product Folder

MOSFET LDO Driver/Controller
Generic P/N 2975
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 No 
InputMin Voltage (Volt) 1.80 
InputMax Voltage (Volt) 24 
Output Current (mA) - 
Dropout Voltage (Volt) - 
Quiescent Current (mA) .18 
SecondaryOutput Voltage (Volt) - 
SecondaryOutput Current (Amp) - 
RegType LDO 
Output Voltage (Volt) 12, 3.30, 5 
Watchdog No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LP2975 MOSFET LDO Driver Controller 725 Kbytes 27-Jul-00 View Online Download Receive via Email
LP2975 MOSFET LDO Driver Controller (JAPANESE)
 764 Kbytes   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
LP2975AIMM-12MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.83reel
of
1000		ZXTT
L47A
16 weeks0
LP2975AIMM-3.3MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.83reel
of
1000		ZXTT
L45A
16 weeks0
LP2975AIMM-5.0MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.83reel
of
1000		ZXTT
L46A
16 weeks0
LP2975IMM-12MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.75reel
of
1000		ZXTT
L47B
16 weeks0
LP2975IMM-3.3MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.75reel
of
1000		ZXTT
L45B
16 weeks0
LP2975IMM-5.0MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.75reel
of
1000		ZXTT
L46B
16 weeks0
LP2975AIMMX-12MINI SOIC8StatusFull productionN/AN/A 1K+$0.83reel
of
3500		ZXTT
L47A
16 weeks0
LP2975AIMMX-3.3MINI SOIC8StatusFull productionN/AN/A 
Buy Now		1K+$0.83reel
of
3500		ZXTT
L45A
16 weeks0
LP2975AIMMX-5.0MINI SOIC8StatusFull productionN/AN/A 1K+$0.83reel
of
3500		ZXTT
L46A
16 weeks0
LP2975IMMX-12MINI SOIC8StatusFull productionN/AN/A 1K+$0.75reel
of
3500		ZXTT
L47B
16 weeks0
LP2975IMMX-3.3MINI SOIC8StatusFull productionN/AN/A 1K+$0.75reel
of
3500		ZXTT
L45B
16 weeks0
LP2975IMMX-5.0MINI SOIC8StatusFull productionN/AN/A 1K+$0.75reel
of
3500		ZXTT
L46B
16 weeks0
LP2975AI-12 MDAUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP2975AI3.3 MDAUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LP2975AI5.0 MDAUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LP2975I-12 MDAUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP2975I-3.3 MDAUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LP2975I-5.0 MDAUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LP2975AI-12 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2975AI3.3 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2975AI5.0 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2975I-12 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2975I-3.3 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2975I-5.0 MWAWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

A high-current LDO regulator is simple to design with the LP2975 LDO Controller. Using an external P-FET, the LP2975 will deliver an ultra low dropout regulator with extremely low quiescent current.

High open loop gain assures excellent regulation and ripple rejection performance.

The trimmed internal bandgap reference provides precise output voltage over the entire operating temperature range.

Dropout voltage is "user selectable" by sizing the external FET: the minimum input-output voltage required for operation is the maximum load current multiplied by the RDS(ON) of the FET.

Overcurrent protection of the external FET is easily implemented by placing a sense resistor in series with VIN. The 57 mV detection threshold of the current sense circuitry minimizes dropout voltage and power dissipation in the resistor.

The standard product versions available provide output voltages of 12V, 5V, or 3.3V with guaranteed 25°C accuracy of 1.5% ("A" grade) and 2.5% (standard grade).

Features

  • Simple to use, few external components
  • Ultra-small mini SO-8 package
  • 1.5% (A grade) precision output voltage
  • Low-power shutdown input
  • < 1 µA in shutdown
  • Low operating current (180 µA typical @ VIN = 5V)
  • Wide supply voltage range (1.8V to 24V)
  • Built-in current limit amplifier
  • Overtemperature protection
  • 12V, 5V, and 3.3V standard output voltages
  • Can be programmed using external divider
  • -40°C to +125°C junction temperature range

Applications

  • High-current 5V to 3.3V regulator
  • Post regulator for switching converter
  • Current-limited switch

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LP2975AI-12 MDALB25009000006000006169643205
LP2975AI-12 MWALB25009000006000006169643205
LP2975AI3.3 MDALB25009000006000006169643205
LP2975AI3.3 MWALB25009000006000006169643205
LP2975AI5.0 MDALB25009000006000006169643205
LP2975AI5.0 MWALB25009000006000006169643205
LP2975AIMM-12LB25009000006000006169643205
LP2975AIMM-3.3LB25009000006000006169643205
LP2975AIMM-5.0LB25009000006000006169643205
LP2975AIMMX-12LB25009000006000006169643205
LP2975AIMMX-3.3LB25009000006000006169643205
LP2975AIMMX-5.0LB25009000006000006169643205
LP2975I-12 MDALB25009000006000006169643205
LP2975I-12 MWALB25009000006000006169643205
LP2975I-3.3 MDALB25009000006000006169643205
LP2975I-3.3 MWALB25009000006000006169643205
LP2975I-5.0 MDALB25009000006000006169643205
LP2975I-5.0 MWALB25009000006000006169643205
LP2975IMM-12LB25009000006000006169643205
LP2975IMM-3.3LB25009000006000006169643205
LP2975IMM-5.0LB25009000006000006169643205
LP2975IMMX-12LB25009000006000006169643205
LP2975IMMX-3.3LB25009000006000006169643205
LP2975IMMX-5.0LB25009000006000006169643205

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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