Datasheet

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LP3990

OUT

1.0 PF

GND

OUT

(WQFN pin connections shown)

LP3990

www.ti.com

SNVS251I –MAY 2004–REVISED MAY 2013

LP3990 150mA Linear Voltage Regulator for Digital Applications

Check for Samples: LP3990

FEATURES

APPLICATIONS

• 1% Voltage Accuracy at Room Temperature

• Cellular Handsets

• Stable with Ceramic Capacitor • Hand-Held Information Appliances

• Logic Controlled Enable

DESCRIPTION

• No Noise Bypass Capacitor Required

The LP3990 regulator is designed to meet the

• Thermal-Overload and Short-Circuit Protection

requirements of portable, battery-powered systems

providing an accurate output voltage, low noise, and

KEY SPECIFICATIONS

low quiescent current. The LP3990 will provide a

0.8V output from the low input voltage of 2V at up to

• Input Voltage Range, 2.0 to 6.0V

150mA load current. When switched into shutdown

• Output Voltage Range, 0.8 to 3.3V

mode via a logic signal at the enable pin, the power

• Output Current, 150mA

consumption is reduced to virtually zero.

• Output Stable - Capacitors, 1.0µF

The LP3990 is designed to be stable with space

• Virtually Zero I

(Disabled), <10nA

saving ceramic capacitors as small as 1.0µF.

• Very Low I

(Enabled), 43µA

Performance is specified for a -40°C to 125°C

• Low Output Noise, 150µV

RMS

junction temperature range.

• PSRR, 55dB at 1kHz

For output voltages other than 0.8V, 1.2, 1.35V, 1.5V,

1.8V, 2.5V, 2.8V, or 3.3V please contact your local

• Fast Start Up, 105µs

NSC sales office.

PACKAGE

All available in Lead Free option.

• 4-Pin DSBGA, 1 mm x 1.3 mm

• 6-pin WQFN (SOT-23 Footprint)

• SOT-23

For other package options contact your Texas Instruments sales

office.

Typical Application Circuit

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (24 pages)

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LP3990 www.ti.
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LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com PIN DESCRIPTIONS Pin No Symbol Name and Function WQFN DSBGA SOT-23 5 A2 3 2 A1 1 B1 6 B2 1 VIN Voltage Supply Input. A 1.0µF capacitor should be connected at this input. 4 N/C No Connection. Do not connect to any other pin. 4 N/C No Connection. Do not connect to any other pin. Pad GND Common Ground. Connect to Pin 2. 3 VEN Enable Input; Enables the Regulator when ≥ 0.95V. Disables the Regulator when ≤ 0.4V.
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LP3990 www.ti.com SNVS251I – MAY 2004 – REVISED MAY 2013 VEN 3 GND 2 VIN 1 4 5 N/C VOUT SOT-23 Package See Package Number DBV These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) (3) Input Voltage -0.3 to 6.5V Output Voltage -0.3 to (VIN + 0.3V) with 6.5V (max) Enable Input Voltage -0.3 to (VIN + 0.3V) with 6.
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LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com Thermal Properties (1) Junction To Ambient Thermal Resistance (2) θJA(WQFN-6) 88°C/W θJA(DSBGA) 220°C/W θJA(SOT-23) 220°C/W (1) (2) 4 Absolute Maximum Ratings are limits beyond which damage can occur. Operating Ratings are conditions under which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits.
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LP3990 www.ti.com SNVS251I – MAY 2004 – REVISED MAY 2013 Electrical Characteristics Unless otherwise noted, VEN =950mV, VIN = VOUT + 1.0V, or 2.0V, whichever is higher. CIN = 1 µF, IOUT = 1 mA, COUT =0.47 µF. Typical values and limits appearing in normal type apply for TJ = 27°C. Limits appearing in boldface type apply over the full junction temperature range for operation, −40 to +125°C.
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LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com Electrical Characteristics (continued) Unless otherwise noted, VEN =950mV, VIN = VOUT + 1.0V, or 2.0V, whichever is higher. CIN = 1 µF, IOUT = 1 mA, COUT =0.47 µF. Typical values and limits appearing in normal type apply for TJ = 27°C. Limits appearing in boldface type apply over the full junction temperature range for operation, −40 to +125°C.
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LP3990 www.ti.com SNVS251I – MAY 2004 – REVISED MAY 2013 Typical Performance Characteristics Unless otherwise specified, CIN = 1.0µF Ceramic, COUT = 0.47 µF Ceramic, VIN = VOUT(NOM) + 1.0V, TA = 25°C, VOUT(NOM) = 1.5V , Shutdown pin is tied to VIN. Ground Current vs Load Current 80 1.50 70 TJ = 125°C GROUND CURRENT (PA) VOUT CHANGE (%) Output Voltage Change vs Temperature 2.00 1.00 0.50 0.00 -0.50 -1.00 60 50 40 TJ = -40°C 30 TJ = 25°C 20 10 -1.50 -2.
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LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) Unless otherwise specified, CIN = 1.0µF Ceramic, COUT = 0.47 µF Ceramic, VIN = VOUT(NOM) + 1.0V, TA = 25°C, VOUT(NOM) = 1.5V , Shutdown pin is tied to VIN. Short Circuit Current Line transient CIN = 1 PF VIN = 6V 800 COUT = 0.47 PF IL = 1 to 150 mA VIN (V) 400 2.5 200 (1V/Div) 'VOUT 0 VOUT 3.
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LP3990 www.ti.com SNVS251I – MAY 2004 – REVISED MAY 2013 Typical Performance Characteristics (continued) Unless otherwise specified, CIN = 1.0µF Ceramic, COUT = 0.47 µF Ceramic, VIN = VOUT(NOM) + 1.0V, TA = 25°C, VOUT(NOM) = 1.5V , Shutdown pin is tied to VIN. Load Transient Noise Density 10 CIN = 1 PF VOUT = 3.3V 1 NOISE (PV/ Hz) 'VOUT LOAD CURRENT (mA) (50 mV/Div) COUT = 0.47 PF VOUT = 1.5V 0.1 150 1 0.01 TIME (20 Ps/DIV) 0.
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LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com APPLICATION HINTS EXTERNAL CAPACITORS In common with most regulators, the LP3990 requires external capacitors for regulator stability. The LP3990 is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance. INPUT CAPACITOR An input capacitor is required for stability. It is recommended that a 1.
PAGE 11
LP3990 www.ti.com SNVS251I – MAY 2004 – REVISED MAY 2013 CAP VALUE (% OF NOM. 1 uF) in the capacitance value falling below the minimum value given in the recommended capacitor specifications table (0.7µF in this case). Note that the graph shows the capacitance out of spec for the 0402 case size capacitor at higher bias voltages. It is therefore recommended that the capacitor manufacturers’ specifications for the nominal value capacitor are consulted for all conditions, as some capacitor sizes (e.g.
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LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com DSBGA LIGHT SENSITIVITY Exposing the DSBGA device to direct light may affect the operation of the device. Light sources, such as halogen lamps, can affect electrical performance, if placed in close proximity to the device. Light with wavelengths in the infra-red portion of the spectrum is the most detrimental, and so, fluorescent lighting used inside most buildings, has little or no effect on performance.
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LP3990 www.ti.com SNVS251I – MAY 2004 – REVISED MAY 2013 REVISION HISTORY Changes from Revision H (May 2013) to Revision I • Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 PACKAGING INFORMATION Orderable Device Status (1) LP3990MF-1.2/NOPB Package Type Package Pins Package Drawing Qty ACTIVE SOT-23 DBV 5 1000 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 SCDB (4/5) LP3990MF-1.8 NRND SOT-23 DBV 5 1000 TBD Call TI Call TI -40 to 125 SCFB LP3990MF-1.
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PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 1-Nov-2013 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LP3990TL-1.8/NOPB ACTIVE DSBGA YZR 4 250 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM -40 to 125 LP3990TL-2.5/NOPB ACTIVE DSBGA YZR 4 250 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM -40 to 125 LP3990TL-2.
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PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) LP3990MF-1.2/NOPB SOT-23 DBV 5 1000 178.0 8.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.2 3.2 1.4 4.0 8.0 Q3 LP3990MF-1.8 SOT-23 DBV 5 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LP3990MF-1.8/NOPB SOT-23 DBV 5 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LP3990MF-2.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) LP3990TL-1.8/NOPB DSBGA YZR 4 250 178.0 8.4 LP3990TL-2.5/NOPB DSBGA YZR 4 250 178.0 8.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 1.09 1.35 0.76 4.0 8.0 Q1 1.09 1.35 0.76 4.0 8.0 Q1 LP3990TL-2.8/NOPB DSBGA YZR 4 250 178.0 8.4 1.09 1.35 0.76 4.0 8.0 Q1 LP3990TLX-0.8/NOPB DSBGA YZR 4 3000 178.0 8.4 1.09 1.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LP3990MFX-1.2/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 LP3990MFX-1.8/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 LP3990MFX-3.3 SOT-23 DBV 5 3000 210.0 185.0 35.0 LP3990MFX-3.3/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 LP3990SD-1.2/NOPB WSON NGG 6 1000 210.0 185.0 35.0 LP3990SD-1.5/NOPB WSON NGG 6 1000 210.0 185.0 35.
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MECHANICAL DATA NGG0006A SDE06A (Rev A) www.ti.
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MECHANICAL DATA YZR0004xxx D 0.600±0.075 E TLA04XXX (Rev D) D: Max = 1.324 mm, Min =1.263 mm E: Max = 1.045 mm, Min =0.984 mm 4215042/A NOTES: A. All linear dimensions are in millimeters. Dimensioning and tolerancing per ASME Y14.5M-1994. B. This drawing is subject to change without notice. www.ti.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.