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LP3988 Product Folder

Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good

Generic P/N 3988

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	Yes
InputMin Voltage (Volt)	2.70, 2.80, 3.10, 3.20
InputMax Voltage (Volt)	6
Output Current (mA)	150

Dropout Voltage (Volt)	.08
Quiescent Current (mA)	.0850
SecondaryOutput Voltage (Volt)	-
SecondaryOutput Current (Amp)	-
RegType	LDO
Output Voltage (Volt)	2.50, 2.60, 2.85, 3
Watchdog	No

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LP3988 Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good	254 Kbytes	27-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

LP3988IMF-2.5

5

Full production

N/A

N/A

1K+

$0.27

reel
of
1000

LFSB
ZXTT

16 weeks

10000

LP3988IMF-2.6

5

Full production

N/A

N/A

1K+

$0.27

reel
of
1000

LDJB
ZXTT

16 weeks

10000

LP3988IMF-2.85

5

Full production

N/A

N/A

1K+

$0.27

reel
of
1000

LDLB
ZXTT

16 weeks

10000

LP3988IMF-3.0

5

Full production

N/A

N/A

1K+

$0.27

reel
of
1000

LFAB
ZXTT

16 weeks

10000

LP3988IMF-3.3

5

Full production

N/A

N/A

1K+

$0.27

reel
of
1000

LH5B
ZXTT

16 weeks

10000

LP3988IMFX-2.5

5

Full production

N/A

N/A

1K+

$0.27

reel
of
3000

LFSB
ZXTT

16 weeks

10000

LP3988IMFX-2.6

5

Full production

N/A

N/A

1K+

$0.27

reel
of
3000

LDJB
ZXTT

16 weeks

100000

LP3988IMFX-2.85

5

Full production

N/A

N/A

1K+

$0.27

reel
of
3000

LDLB
ZXTT

16 weeks

200000

LP3988IMFX-3.0

5

Full production

N/A

N/A

1K+

$0.27

reel
of
3000

LFAB
ZXTT

16 weeks

100000

LP3988IMFX-3.3

5

Full production

N/A

N/A

1K+

$0.27

reel
of
3000

LH5B
ZXTT

16 weeks

10000

LP3988I-2.5 MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LP3988I-2.6 MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LP3988I-3.0 MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LP3988I2.85 MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LP3988I-3.0 MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LP3988I-2.5 MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LP3988I-2.6 MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LP3988I2.85 MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

General Description

The LP3988 is a 150mA low dropout regulator designed specially to meet requirements of Portable battery-applications. The LP3988 is designed to work with a space saving, small 1µF ceramic capacitor. The LP3988 features an Error Flag output that indicates a faulty output condition.

The LP3988's performance is optimized for battery powered systems to deliver low noise, extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to lower input voltage levels common to battery operated circuits.

The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA, from a 3.1V to 6V input, consuming less than 1 µA in disable mode and has fast turn-on time less than 200µs.

The LP3988 is available 5 pin SOT-23 package. Performance is specified for -40°C to +125°C temperature range and is available in 2.5, 2.6, 2.85, 3.0 and 3.3V output voltage.

Features

SOT-23-5 package
Power-good flag output
Logic controlled enable
Stable with ceramic and high quality tantalum capacitors
Fast turn-on
Thermal shutdown and short-circuit current limit

Key Specification

2.5 to 6.0V input range
150mA guaranteed output
40dB PSRR at 10kHz
<=1 µA quiescent current when shut down
Fast Turn-On time: 100 µs (typ.)
80 mV typ dropout with 150mA load
-40 to +125°C junction temperature range for operation
2.5, 2.6V, 2.85V, 3.0V, and 3.3V

Applications

CDMA cellular handsets
Wideband CDMA cellular handsets
GSM cellular handsets
Portable information appliances
Tiny 3.3V ± 5% to 2.85V, 150mA converter

Reliability Metrics

Part Number	Process	Early Failure Rate - Rejects	Sample Size (EFR)	PPM *	Rel. Rejects	Device Hours	Long Term Failure Rates (FITS)	MTTF
LP3988I-2.5 MDC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I-2.5 MWC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I-2.6 MDC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I-2.6 MWC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I-3.0 MDC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I-3.0 MWC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I2.85 MDC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988I2.85 MWC	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMF-2.5	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMF-2.6	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMF-2.85	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMF-3.0	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMF-3.3	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMFX-2.5	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMFX-2.6	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMFX-2.85	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMFX-3.0	CMOS7	2	14200	141	0	800000	5	226190940
LP3988IMFX-3.3	CMOS7	2	14200	141	0	800000	5	226190940

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]