LP2985-N

SOT-23 (DBV)

5 mm² 2.9 x 1.6

Input Voltage Range: 2.5 V to 16 V
Ultra Low-Dropout Voltage
Ensured 150 mA Output Current
Requires Minimum External Components
Stable With Low-ESR Output Capacitor
< 1 µA Quiescent Current When Shut Down
Low Ground Pin Current at All Loads
Output Voltage Accuracy 1% (A Grade)
High Peak Current Capability
Low Z_OUT: 0.3 Ω Typical (10 Hz to 1 MHz)
Overtemperature and Overcurrent Protection
−40°C to 125°C Junction Temperature Range
Custom Voltages Available

Input Voltage Range: 2.5 V to 16 V
Ultra Low-Dropout Voltage
Ensured 150 mA Output Current
Requires Minimum External Components
Stable With Low-ESR Output Capacitor
< 1 µA Quiescent Current When Shut Down
Low Ground Pin Current at All Loads
Output Voltage Accuracy 1% (A Grade)
High Peak Current Capability
Low Z_OUT: 0.3 Ω Typical (10 Hz to 1 MHz)
Overtemperature and Overcurrent Protection
−40°C to 125°C Junction Temperature Range
Custom Voltages Available

The LP2985-N low noise linear (LDO) regulator delivers up to 150-mA output current and only requires 300-mV dropout voltage of input to output. Using an optimized vertically integrated PNP (VIP) process, the LP2985-N delivers unequaled performance for all battery-powered designs. The LP2985-N device provides 1% tolerance precision output voltage with only 75-µA quiescent current at 1-mA load and 850 µA at 150-mA load. By adding a 10-nF bypass capacitor, the output noise can be reduced to 30 µV_RMS in a 30-kHz bandwidth.

The LP2985-N is designed to work with a ceramic output capacitor with equivalent series resistance (ESR) as low as 5 mΩ. The device is available with fixed output voltage from 2.5 V to 6.1 V. Contact Texas Instrument Sales for specific voltage option needs.

For all available packages, see the orderable addendum at the end of the data sheet.

Download

Technical documentation

star

= Top documentation for this product selected by TI

No results found. Please clear your search and try again.

View all 8

	Type	Title	Date
*	Data sheet	LP2985-N Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in a SOT-23 Package Designed for Use With Very Low ESR Output Capacitors datasheet (Rev. Y)	20 Dec 2016
	Technical article	3 quiescent-current (Iq) specifications you need to understand	12 Nov 2021
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)	27 Jun 2019
	Technical article	Trends in building automation: connected sensors for user comfort	02 Sep 2016
	Application note	AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B)	06 May 2013
	User guide	AN-1840 USB I 2 C Interface Board Reference Manual (Rev. A)	30 Apr 2013
	Application note	AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B)	25 Apr 2013
	White paper	Engineers note: Capacitors are key to voltage regulator design	01 Jul 2002

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

FDC1004QEVM — Automotive 4-Channel Capacitive to Digital Converter Evaluation Module

The FDC1004Q evaluation module is used to evaluate the FDC1004-Q1, automotive 4-channel capacitive-to-digital converter. The evaluation modules features a breakable PCB composed of three sections: a USB to I²C converter based on the MSP430F5528 microcontroller, the FDC1004-Q1, and two sensor (...)

User guide

In stock

Limit: 5

Evaluation board

LDC1314DIAL-EVM — LDC1314 inductance-to-digital converter evaluation module: 1-degree dial

The LDC1314DIAL evaluation module implements a contactless rotational position sensing solution that is accurate to 1 degree with 0.1 degree resolution.

This design uses the LDC1314 but can also be replicated with the LDC1312, LDC1612 and LDC1614.

This 16-button stainless steel keypad, which utilizes TI's inductive touch technology, demonstrates highly sensitive buttons on a single piece of 0.6mm thick stainless steel metal. The design utilizes a MUXed approach to implement many buttons with a single LDC1614. The design is (...)

Reference designs

PMP30197 — 5.85W Isolated Self-Driven Synchronous Inverting Fly-Buckboost with Optocoupler Reference Design

The PMP30197 reference design is an inverting Fly-BuckBoost power supply using the LM2743 to generate an isolated output voltage of 3.9V. The design accepts an input voltage of 2V to 5.25V. The converter regulates the secondary side output with an optocoupler and is capable of achieving good (...)

Reference designs

TIDA-01070 — HVAC Coil Airflow Sensor Reference Design for Predictive Maintenance in Air Filter Replacement

This design provides a reference for monitoring airflow efficiency and temperature through heat ventilation and air conditioner (HVAC) systems. The reference design is used in conjunction with solid state relays and piezoelectric vibration sensors to monitor and react accordingly to low airflow and (...)

Reference designs

TIDA-00509 — 16-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter

The LDC1314's unique inductive sensing capability is used to implement a contactless, 16 button, multi-function keypad. It uses standard PCB technology and easily manufactured components to implement a low cost solution.

This reference design uses the LDC1314. This reference design can also be (...)

Reference designs

TIDA-00590 — Dual Battery Charger IC Reference Design (connected in Cascode Configuration)

Higher capacity 1S batteries in the latest smartphones and tablets need higher charge currents to charge faster. With 12-V power sources, two 5-A battery charger ICs connected in cascode, parallel configuration can provide more than 5-A charging current. In addition, the heat from the (...)

Reference designs

TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter

The LDC1314's unique inductive sensing capability is used to implement a contactless rotational position sensing solution that is accurate to 1 degree. It uses standard PCB technology and easily manufactured components to implement a low cost solution.

This reference design uses the LDC1314. (...)