Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed SOT 23 5

LM3490

www.ti.com

SNVS012E –JUNE 1999–REVISED APRIL 2013

LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-

Controlled ON/OFF

Check for Samples: LM3490

FEATURES

DESCRIPTION

The LM3490 is an integrated linear voltage regulator.

• 3.3, 5, 12, and 15V Versions Available

It features operation from an input as high as 30V

• Logic-Controlled ON/OFF

and a specified maximum dropout of 1.2V at the full

• Packaged in the Tiny 5-Lead SOT-23 Package

100 mA load. Standard packaging for the LM3490 is

the 5-lead SOT-23 package. A logic-controlled

ON/OFF feature makes the LM3490 ideal for

APPLICATIONS

powering subsystems ON and OFF as needed.

• Tiny Alternative to LM78LXX Series and

The 5, 12, and 15V members of the LM3490 series

Similar Devices

are intended as tiny alternatives to industry standard

• Tiny 5V±5% to 3.3V, 100 mA Converter

LM78LXX series and similar devices. The 1.2V quasi

• Post Regulator for Switching DC/DC Converter

low dropout of LM3490 series devices makes them a

• Bias Supply for Analog Circuits nice fit in many applications where the 2 to 2.5V

dropout of LM78LXX series devices precludes their

(LM78LXX series devices) use.

KEY SPECIFICATIONS

The LM3490 series features a 3.3V member. The

• 30V Maximum Input for Operation

SOT packaging and quasi low dropout features of the

• 1.2V Specified Maximum Dropout over Full

LM3490 series converge in this device to provide a

Load and Temperature Ranges

very nice, very tiny 3.3V, 100 mA bias supply that

• 100 mA Specified Load Current

regulates directly off the system 5V±5% power

supply.

• ±5% Specified Output Voltage Tolerance over

Full Load and Temperature Ranges

• −40 to +125°C Junction Temperature Range for

Operation

Typical Application Circuit Connection Diagram

Figure 1. Top View

SOT-23 Package

5-Lead, Molded-Plastic Small-Outline Transistor

(SOT) Package

Package Code DBV0005A

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 (17 pages)

PAGE 1
LM3490 www.ti.com SNVS012E – JUNE 1999 – REVISED APRIL 2013 LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with LogicControlled ON/OFF Check for Samples: LM3490 FEATURES DESCRIPTION • • • The LM3490 is an integrated linear voltage regulator. It features operation from an input as high as 30V and a specified maximum dropout of 1.2V at the full 100 mA load. Standard packaging for the LM3490 is the 5-lead SOT-23 package.
PAGE 2
LM3490 SNVS012E – JUNE 1999 – REVISED APRIL 2013 www.ti.com 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) Input Voltage (IN to GND) 35V Voltage ON/OFF to GND 5.5V Power Dissipation (3) Junction Temp. (TJ) 400 mW (3) +150°C −65 to +150°C Ambient Storage Temp. Wave Soldering Time, Temp.
PAGE 3
LM3490 www.ti.com SNVS012E – JUNE 1999 – REVISED APRIL 2013 ELECTRICAL CHARACTERISTICS LM3490-3.3, LM3490-5.0 VIN = VNOM + 1.5V unless otherwise noted. Typicals and limits appearing in normal type apply for TA = TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, −40 to +125°C (1) (2) (3) Nominal Output Voltage (VNOM) Symbol VOUT Parameter Output Voltage 3.3V Conditions 1 mA ≤ IOUT ≤ 100 mA Typical 5.0V Limit 3.30 Typical 5.00 3.17 3.14 3.
PAGE 4
LM3490 SNVS012E – JUNE 1999 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS LM3490-12, LM3490-15 VIN = VNOM + 1.5V unless otherwise noted. Typicals and limits appearing in normal type apply for TA = TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation, −40 to +125°C (1) (2) (3) Nominal Output Voltage (VNOM) Symbol VOUT 12V Parameter Output Voltage Conditions 1 mA ≤ IOUT ≤ 100 mA Typical 15V Limit 12.00 Typical 15.00 11.52 11.40 12.
PAGE 5
LM3490 www.ti.com SNVS012E – JUNE 1999 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF, COUT = 0.1 µF, and TA .=25°C. Dropout Voltage vs Load Current Dropout Voltage vs Junction Temperature Figure 2. Figure 3. Ground Pin Current vs Input Voltage Ground Pin Current vs Input Voltage Figure 4. Figure 5. Ground Pin Current vs Load Current Ground Pin Current vs Junction Temperature Figure 6. Figure 7.
PAGE 6
LM3490 SNVS012E – JUNE 1999 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF, COUT = 0.1 µF, and TA .=25°C. 6 Input Current vs Input Voltage Input Current vs Input Voltage Figure 8. Figure 9. Line Transient Response Line Transient Response Figure 10. Figure 11. Load Transient Response Load Transient Response Figure 12. Figure 13.
PAGE 7
LM3490 www.ti.com SNVS012E – JUNE 1999 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF, COUT = 0.1 µF, and TA .=25°C. Load Transient Response Load Transient Response Figure 14. Figure 15. Output Voltage vs Input Voltage Output Voltage vs Input Voltage Figure 16. Figure 17. Output Voltage vs Input Voltage Output Voltage vs Input Voltage Figure 18. Figure 19.
PAGE 8
LM3490 SNVS012E – JUNE 1999 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF, COUT = 0.1 µF, and TA .=25°C. Output ShortCircuit Current Output ShortCircuit Current Figure 20. Figure 21. Power Supply Rejection Ratio Power Supply Rejection Ratio Figure 22. Figure 23. DC Load Regulation Figure 24.
PAGE 9
LM3490 www.ti.com SNVS012E – JUNE 1999 – REVISED APRIL 2013 APPLICATIONS INFORMATION ON/OFF Pin The LM3490 features a logic controlled ON/OFF pin that will allow the output voltage to be disabled, or enabled, as needed. The defined operating voltage range for this pin is 0.0V to 5.0V. The ON/OFF pin can not be left floating, as the output status cannot be ensured. Additionally, the ON/OFF pin should not be biased below ground potential as unpredictable device behavior may occur.
PAGE 10
LM3490 SNVS012E – JUNE 1999 – REVISED APRIL 2013 www.ti.com REVISION HISTORY Changes from Revision D (April 2013) to Revision E • 10 Page Changed layout of National Data Sheet to TI format ............................................................................................................
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 PACKAGING INFORMATION Orderable Device 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) LM3490IM5-12 NRND SOT-23 DBV 5 1000 TBD Call TI Call TI -40 to 125 L80B LM3490IM5-12/NOPB ACTIVE SOT-23 DBV 5 1000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM -40 to 125 L80B LM3490IM5-3.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line.
PAGE 13
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) B0 (mm) K0 (mm) P1 (mm) LM3490IM5-12 SOT-23 DBV 5 1000 178.0 8.4 LM3490IM5-12/NOPB SOT-23 DBV 5 1000 178.0 LM3490IM5-3.3 SOT-23 DBV 5 1000 178.0 LM3490IM5-3.3/NOPB SOT-23 DBV 5 1000 LM3490IM5-5.0 SOT-23 DBV 5 W Pin1 (mm) Quadrant 3.2 3.2 1.4 4.0 8.0 Q3 8.4 3.2 3.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM3490IM5-12 SOT-23 DBV 5 1000 210.0 185.0 35.0 LM3490IM5-12/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LM3490IM5-3.3 SOT-23 DBV 5 1000 210.0 185.0 35.0 LM3490IM5-3.3/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LM3490IM5-5.0 SOT-23 DBV 5 1000 210.0 185.0 35.0 LM3490IM5-5.0/NOPB SOT-23 DBV 5 1000 210.
PAGE 15
PAGE 16
PAGE 17
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.