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LMR16030SDDAR

IC REG BUCK ADJ 3A 8SOPWR

Part Number: LMR16030SDDAR

Manufacturer: Texas Instruments

Category: Voltage Regulators - DC DC Switching Regulators

Package: 8-PowerSOIC (0.154", 3.90mm Width)

Datasheet:: LMR16030SDDAR.pdf

Description: IC REG BUCK ADJ 3A 8SOPWR

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

LMR16030SDDAR SIMPLE SWITCHER 60V, 3A Step-Down Converter with 40µA Iq

A comprehensive technical overview of the LMR16030SDDAR, a 60V, 3A SIMPLE SWITCHER step-down converter from Texas Instruments featuring ultra-low 40µA quiescent current. Covers device function, core features, electrical specifications, 8-pin HSOIC package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 8-Pin HSOIC (DDA) 4.3V to 60V Input

Device Classification 60V, 3A Step-Down DC-DC Converter

Part Number: LMR16030SDDAR

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +125°C

PRODUCT OVERVIEW

What Is the LMR16030SDDAR?

LMR16030SDDAR is a 60V, 3A SIMPLE SWITCHER step-down converter from Texas Instruments with an integrated high-side MOSFET[reference:0]. The device features a wide input voltage range from 4.3V to 60V, making it suitable for various applications from industrial to automotive for power conditioning from unregulated sources[reference:1][reference:2].

The LMR16030SDDAR offers an ultra-low 40µA operating quiescent current in Sleep-mode, which is ideal for battery-powered systems[reference:3][reference:4]. An ultra-low 1µA current in shutdown mode can further prolong battery life[reference:5]. The device supports a wide adjustable switching frequency from 200kHz to 2.5MHz, allowing designers to optimize either efficiency or external component size[reference:6][reference:7].

Internal loop compensation simplifies the design process by freeing the user from the tedious task of loop compensation design[reference:8]. The device also features a precision enable input for regulator control and system power sequencing, as well as built-in protection features including cycle-by-cycle current limit, thermal sensing and shutdown, and output overvoltage protection[reference:9].

Wide Input Range 4.3V to 60V input voltage range supports industrial and automotive applications.

Ultra-Low Iq 40µA operating quiescent current and 1µA shutdown current extend battery life.

High Output Current 3A continuous output current with integrated 155mΩ high-side MOSFET.

DEVICE HIGHLIGHTS

Key Features and Benefits of LMR16030SDDAR

Wide Input Voltage Range

Operates from 4.3V to 60V, supporting a broad spectrum of industrial, automotive, and battery-powered applications[reference:10][reference:11].

Ultra-Low Quiescent Current

40µA operating quiescent current in Sleep-mode and 1µA shutdown current extend battery life in portable systems[reference:12][reference:13][reference:14].

3A Continuous Output Current

Delivers 3A continuous output current with an integrated 155mΩ high-side MOSFET[reference:15][reference:16].

Adjustable Switching Frequency

Wide adjustable switching frequency from 200kHz to 2.5MHz allows optimization of efficiency or external component size[reference:17][reference:18].

Comprehensive Protection Features

Built-in cycle-by-cycle current limit, thermal sensing and shutdown, and output overvoltage protection for robust system design[reference:19].

Simplified Design

Internal loop compensation and precision enable input simplify regulator control and system power sequencing[reference:20].

REFERENCE DATA

Technical Specifications for LMR16030SDDAR

Part Number	LMR16030SDDAR	Manufacturer	Texas Instruments
Device Type	60V, 3A Step-Down Converter	Topology	Buck (Step-Down)[reference:21]
Input Voltage Range	4.3V to 60V[reference:22][reference:23]	Output Voltage Range	0.8V to 50V (Adjustable)[reference:24][reference:25]
Output Current	3A Continuous[reference:26][reference:27]	Switching Frequency	200kHz to 2.5MHz[reference:28][reference:29]
High-Side MOSFET	155mΩ[reference:30][reference:31]	Quiescent Current	40µA (Typical)[reference:32][reference:33]
Shutdown Current	1µA (Typical)[reference:34]	Synchronous Rectifier	No[reference:35][reference:36]
Control Mode	Current Mode[reference:37]	Internal Compensation	Yes[reference:38]
Package	8-Pin HSOIC (DDA) with Exposed Pad[reference:39][reference:40]	Package Body Size	4.90mm × 3.90mm
Mounting Type	Surface Mount[reference:41]	Operating Temperature (TJ)	-40°C to +125°C[reference:42][reference:43]
Storage Temperature	-65°C to +150°C[reference:44]	MSL Rating	Level-2-260C-1 YEAR[reference:45]
RoHS	Compliant[reference:46]	Packaging	Tape & Reel (2,500 per Reel)[reference:47]

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for LMR16030SDDAR

Output Voltage & Frequency Configuration

The LMR16030SDDAR offers flexible output voltage and frequency configuration:

Output Voltage: Adjustable from 0.8V to 50V using an external resistor divider[reference:48]
Switching Frequency: Programmable from 200kHz to 2.5MHz using an external resistor; allows optimization of efficiency or component size[reference:49][reference:50]
Enable Input: Precision enable input for regulator control and system power sequencing[reference:51]
Soft-Start: Adjustable soft-start for controlled inrush current[reference:52]

PCB and Power-Supply Guidance

Step-down converter performance depends on layout, bypassing, and component selection:

Input Capacitor: Place a high-quality ceramic capacitor close to the VIN and GND pins to minimize input voltage ripple
Output Capacitor: Use a ceramic capacitor with appropriate voltage rating and capacitance for stable operation
Exposed Pad: The exposed pad on the bottom of the HSOIC package is connected to GND and must be soldered to the PCB for proper thermal and electrical performance[reference:53]
Frequency Synchronization: Supports frequency synchronization to an external clock for noise-sensitive applications[reference:54]
Light Load Efficiency: Light load efficient mode improves efficiency at low output currents[reference:55]
Verify the recommended PCB footprint from the official datasheet before production

8-PIN HSOIC (DDA)

Pin Configuration Reference for LMR16030SDDAR

LMR16030

HSOIC (DDA) TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The DDA package has 8 pins with exposed pad (Pin 9) connected to GND.

1 BOOT Bootstrap Capacitor Connection - Connect capacitor between BOOT and SW

2 VIN Input Supply Voltage - 4.3V to 60V

3 EN Enable Input - Precision enable for regulator control

4 RT Frequency Programming - Connect resistor to GND to set switching frequency (200kHz–2.5MHz)

5 FB Feedback Input - Connect to external resistor divider for output voltage setting

6 COMP Compensation - Internal loop compensation simplifies design

7 GND Ground - Power and signal ground reference

8 SW Switch Node - Connect to inductor and bootstrap capacitor

APPLICATION AREAS

Typical Applications for LMR16030SDDAR

Automotive Systems

12V and 24V automotive power supplies, infotainment systems, and body electronics[reference:56].

Industrial Applications

Industrial power conditioning from unregulated sources, factory automation, and control systems[reference:57][reference:58].

Battery-Powered Systems

Portable devices, battery chargers, and energy-efficient equipment utilizing 40µA Iq[reference:59].

Power Distribution

DC-DC conversion for 12V, 24V, and 48V distributed power systems.

High-Voltage Step-Down Conversion

Efficient step-down conversion from high-voltage unregulated sources[reference:60].

Telecom & Networking Equipment

Power supplies for base stations, routers, and networking infrastructure.

REPLACEMENT GUIDANCE

Selecting an Alternative for LMR16030SDDAR

A replacement for the LMR16030SDDAR should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements.

Input voltage range (4.3V–60V)

Output current capability (3A)

Quiescent current (40µA)

Switching frequency (200kHz–2.5MHz adjustable)

Package (8-pin HSOIC with exposed pad)

Operating temperature (–40°C to 125°C)

Integrated 155mΩ high-side MOSFET

Internal compensation for simplified design

Family alternatives: LMR16030SDDA (tube packaging, same electrical specs), LMR16030PDDAR (different package/pinout), LMR16006 (600mA, 60V), LMR16010 (1A, 60V), LMR16020 (2A, 60V). For lower current requirements, consider the LMR16006 (600mA) or LMR16010 (1A). For higher current, consider the LMR16020 (2A). Select based on output current, package, and packaging needs.

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MANUFACTURER INFORMATION

Texas Instruments

The LMR16030 (LMR16030SDDAR) belongs to the SIMPLE SWITCHER portfolio of Texas Instruments. The family is designed for high-voltage step-down conversion with ultra-low quiescent current, making it ideal for industrial, automotive, and battery-powered applications[reference:61][reference:62].

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: LMR16030SDDAR

Manufacturer: Texas Instruments

Package: 8-PowerSOIC (0.154", 3.90mm Width)

Series: SIMPLE SWITCHER®

Package/Case: 8-PowerSOIC (0.154", 3.90mm Width)

Packaging: Tape & Reel (TR)

Product Status: Active

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Output Type: Adjustable

Number of Outputs: 1

Voltage - Input (Min): 4.3V

Voltage - Input (Max): 60V

Voltage - Output (Min/Fixed): 0.8V

Voltage - Output (Max): 50V

Current - Output: 3A

Frequency - Switching: 200kHz ~ 2.5MHz

Synchronous Rectifier: No

Operating Temperature: -40°C ~ 125°C (TJ)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 8-SO PowerPad

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Part Number: LMR16030SDDAR

Manufacturer: Texas Instruments

Package: 8-PowerSOIC (0.154", 3.90mm Width)

Category: Voltage Regulators - DC DC Switching Regulators

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