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Products > Analog - Regulators > Linear Regulators - Low Dropout Voltage > Positive Voltage - Fixed > LP3852

LP3852 Product Folder

1.5A Fast Ultra Low Dropout Linear Regulator

See Also:		LP3882 - FOR INPUT VOLTAGES AS LOW AS 1.5V, 1.8V, 2.0V AND 2.5V
		LP3855 - ADJUSTABLE OUTPUT, HAS SEPARATE SENSE PIN
		LP3853 - 3A VERSION

Generic P/N 3852

General
Description

Package
& Models

Samples
& Pricing

Reliability
Metrics

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)	.24
Quiescent Current (mA)	4
SecondaryOutput Voltage (Volt)	-
SecondaryOutput Current (Amp)	-
RegType	LDO, Linear Regulator
Output Voltage (Volt)	1.80, 2.50, 3.30, 5
Watchdog	No

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LP3852 LP3855 1.5A Fast Ultra Low Dropout Linear Regulators	321 Kbytes	17-Sep-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

LP3852ET-1.8

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ET
-1.8

12-14 weeks

50000

LP3852ET-2.5

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ET
-2.5

12-14 weeks

50000

LP3852ET-3.3

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ET
-3.3

12-14 weeks

50000

LP3852ET-5.0

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ET
-5.0

12-14 weeks

50000

LP3852ES-1.8

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ES
-1.8

12-14 weeks

50000

LP3852ES-2.5

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ES
-2.5

13-15 weeks

50000

LP3852ES-3.3

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ES
-3.3

12-14 weeks

50000

LP3852ES-5.0

5

Full production

N/A

N/A

1K+

$1.64

rail
of
45

NSUZXYTT
LP3852ES
-5.0

12-14 weeks

50000

LP3852ESX-1.8

5

Full production

N/A

N/A

1K+

$1.64

reel
of
500

NSUZXYTT
LP3852ES
-1.8

12-14 weeks

50000

LP3852ESX-2.5

5

Full production

N/A

N/A

1K+

$1.64

reel
of
500

NSUZXYTT
LP3852ES
-2.5

12-14 weeks

50000

LP3852ESX-3.3

5

Full production

N/A

N/A

1K+

$1.64

reel
of
500

NSUZXYTT
LP3852ES
-3.3

12-14 weeks

50000

LP3852ESX-5.0

5

Full production

N/A

N/A

1K+

$1.64

reel
of
500

NSUZXYTT
LP3852ES
-5.0

12-14 weeks

50000

General Description

The LP3852/LP3855 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 quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852/LP3855 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3852/LP3855 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 24mV at 150mA load current and 240mV at 1.5A load current.

Ground Pin Current: Typically 4mA at 1.5A load current.

Shutdown Mode: Typically 10nA quiescent current when the shutdown pin is pulled low.

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

SENSE: Sense pin improves regulation at remote loads.

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V 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 0.06%
10nA quiescent current in shutdown mode
Guaranteed output current of 1.5A DC
Available in TO-263 and TO-220 packages
Output voltage accuracy ± 1.5%
Error# flag indicates output status
Sense option improves load regulation
Minimum 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
LP3852ES-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3852ES-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3852ES-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3852ES-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3852ESX-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3852ESX-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3852ESX-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3852ESX-5.0	CS065	0	8800	0	0	600000	6	169643205
LP3852ET-1.8	CS065	0	8800	0	0	600000	6	169643205
LP3852ET-2.5	CS065	0	8800	0	0	600000	6	169643205
LP3852ET-3.3	CS065	0	8800	0	0	600000	6	169643205
LP3852ET-5.0	CS065	0	8800	0	0	600000	6	169643205

For more information on Reliablitity Metrics, please click here.

[Information as of 15-Jan-2004]