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Products > Analog - Regulators > Linear Regulators - Low Dropout Voltage > Positive Voltage - Adjustable > LP3964

LP3964 Product Folder

800mA Fast Ultra Low Dropout Linear Regulator

See Also:		LP3874 - UTILIZES SMALLER INPUT AND OUTPUT CAPACITORS
		LP3881 - FOR INPUT VOLTAGES AS LOW AS 1.5V, 1.8V, 2.0V AND 2.5V

Generic P/N 3964

General
Description

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)	2.50
InputMax Voltage (Volt)	7
Output Current (mA)	800

Dropout Voltage (Volt)	.24
Quiescent Current (mA)	3
SecondaryOutput Voltage (Volt)	-
SecondaryOutput Current (Amp)	-
RegType	LDO
Output Min (Volt)	1.2150
Output Max (Volt)	5
Watchdog	No

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LP3961 LP3964 800mA 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 Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LP3964EMP-1.8

5

Full production

N/A

N/A

1K+

$1.01

reel
of
1000

XYTT
LBFB

15-17 weeks

50000

LP3964EMP-2.5

5

Full production

N/A

N/A

1K+

$1.01

reel
of
1000

XYTT
LBHB

15-17 weeks

50000

LP3964EMP-3.3

5

Full production

N/A

N/A

1K+

$1.01

reel
of
1000

XYTT
LBJB

15-17 weeks

50000

LP3964EMP-5.0

5

Full production

N/A

N/A

1K+

$1.01

reel
of
1000

XYTT
LBUB

15-17 weeks

50000

LP3964EMP-ADJ

5

Full production

N/A

N/A

1K+

$1.01

reel
of
1000

XYTT
LBPB

15-17 weeks

75000

LP3964EMPX-1.8

5

Full production

N/A

N/A

1K+

$1.01

reel
of
2000

XYTT
LBFB

15-17 weeks

50000

LP3964EMPX-2.5

5

Full production

N/A

N/A

1K+

$1.01

reel
of
2000

XYTT
LBHB

15-17 weeks

50000

LP3964EMPX-3.3

5

Full production

N/A

N/A

1K+

$1.01

reel
of
2000

XYTT
LBJB

15-17 weeks

50000

LP3964EMPX-5.0

5

Full production

N/A

N/A

1K+

$1.01

reel
of
2000

XYTT
LBUB

15-17 weeks

50000

LP3964EMPX-ADJ

5

Full production

N/A

N/A

1K+

$1.01

reel
of
2000

XYTT
LBPB

15-17 weeks

50000

LP3964ET-1.8

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ET
-1.8

12-14 weeks

50000

LP3964ET-2.5

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ET
-2.5

12-14 weeks

50000

LP3964ET-3.3

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ET
-3.3

12-14 weeks

50000

LP3964ET-5.0

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ET
-5.0

12-14 weeks

50000

LP3964ET-ADJ

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ET
-ADJ

12-14 weeks

50000

LP3964ES-1.8

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ES
-1.8

12-14 weeks

50000

LP3964ES-2.5

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ES
-2.5

12-14 weeks

50000

LP3964ES-3.3

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ES
-3.3

12-14 weeks

50000

LP3964ES-5.0

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ES
-5.0

12-14 weeks

50000

LP3964ES-ADJ

5

Full production

N/A

N/A

1K+

$1.15

rail
of
45

NSUZXYTT
LP3964ES
-ADJ

13-15 weeks

50000

LP3964ESX-1.8

5

Full production

N/A

N/A

1K+

$1.15

reel
of
500

NSUZXYTT
LP3964ES
-1.8

12-14 weeks

50000

LP3964ESX-2.5

5

Full production

N/A

N/A

1K+

$1.15

reel
of
500

NSUZXYTT
LP3964ES
-2.5

12-14 weeks

50000

LP3964ESX-3.3

5

Full production

N/A

N/A

1K+

$1.15

reel
of
500

NSUZXYTT
LP3964ES
-3.3

12-14 weeks

50000

LP3964ESX-5.0

5

Full production

N/A

N/A

1K+

$1.15

reel
of
500

NSUZXYTT
LP3964ES
-5.0

12-14 weeks

50000

LP3964ESX-ADJ

5

Full production

N/A

N/A

1K+

$1.15

reel
of
500

NSUZXYTT
LP3964ES
-ADJ

13-14 weeks

50000

General Description

The LP3961/LP3964 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 LP3961/LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3961/LP3964 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 24mV at 80mA load current and 240mV at 800mA load current.

Ground Pin Current: Typically 4mA at 800mA 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 LP3961).

SENSE: Sense pin improves regulation at remote loads. (For LP3964)

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3964), 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 0.02%
15µA quiescent current in shutdown mode
Guaranteed output current of 0.8A DC
Available in SOT-223,TO-263 and TO-220 packages
Output voltage accuracy ± 1.5%
Error# flag indicates output status (LP3961)
Sense option improves better load regulation (LP3964)
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
LP3964EMP-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3964EMP-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3964EMP-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3964EMP-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3964EMP-ADJ	CS065	0	8800	0	0	600000	6	169643205
LP3964EMPX-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3964EMPX-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3964EMPX-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3964EMPX-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3964EMPX-ADJ	CS065	0	8800	0	0	600000	6	169643205
LP3964ES-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3964ES-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3964ES-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3964ES-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3964ES-ADJ	CS065	0	8800	0	0	600000	6	169643205
LP3964ESX-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3964ESX-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3964ESX-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3964ESX-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3964ESX-ADJ	CS065	0	8800	0	0	600000	6	169643205
LP3964ET-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3964ET-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3964ET-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3964ET-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3964ET-ADJ	CS065	0	8800	0	0	600000	6	169643205

For more information on Reliablitity Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date	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]