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LTC3630AHMSE#TRPBF

IC REG BUCK ADJ 500MA 16MSOP

Part Number: LTC3630AHMSE#TRPBF

Manufacturer: Analog Devices Inc.

Category: Voltage Regulators - DC DC Switching Regulators

Package: 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad

Datasheet:: LTC3630AHMSE#TRPBF.pdf

Description: IC REG BUCK ADJ 500MA 16MSOP

Select Quantity Stock: 4,667

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

LTC3630AHMSE#TRPBF High Efficiency, 76V, 500mA Synchronous Step-Down Converter

A comprehensive technical overview of the LTC3630AHMSE#TRPBF, a high-efficiency synchronous step-down DC/DC converter from Analog Devices featuring a 4V to 76V wide input range, internal high-side and low-side power MOSFETs, 12µA typical quiescent current, programmable output current from 50mA to 500mA, Burst Mode® operation, and a thermally enhanced 16-lead MSOP package. Covers device function, core features, electrical specifications, pin configuration, typical applications, and replacement selection guidance.

Analog Devices 16-MSOP-EP (3.00mm × 4.04mm) 4V to 76V

Device Classification Synchronous Step-Down DC/DC Converter

Part Number: LTC3630AHMSE#TRPBF

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +150°C

PRODUCT OVERVIEW

What Is the LTC3630AHMSE#TRPBF?

LTC3630AHMSE#TRPBF is a high-efficiency step-down DC/DC converter from Analog Devices with internal high-side and synchronous low-side power switches. The device draws only 12µA typical DC supply current while maintaining a regulated output voltage at no load, making it ideal for battery-powered and always-on applications.

The LTC3630A can supply up to 500mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The device's combination of Burst Mode® operation, integrated power switches, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents.

With its wide input range of 4V to 76V, the LTC3630A is a robust converter suited for regulating a wide variety of power sources. The 0.8V ±1% feedback voltage reference, precise RUN pin threshold, internal and external soft-start, and programmable 1.8V, 3.3V, 5V or adjustable output provide design flexibility. A feedback comparator output enables multiple LTC3630A devices to be paralleled in higher current applications.

The LTC3630AHMSE#TRPBF is available in the thermally-enhanced 16-lead MSOP package (MSE16) with an exposed pad, rated for operation from –40°C to +150°C. The device is AEC-Q100 qualified for automotive applications, RoHS compliant, and in active production.

Wide Input Voltage Range 4V to 76V operating input range with output voltage programmable from 0.8V to V_IN.

Ultra-Low Quiescent Current 12µA typical DC supply current with regulated output at no load, ideal for battery-powered applications.

Integrated Synchronous Rectification Internal high-side and low-side power MOSFETs with no compensation required and 100% duty cycle low dropout operation.

DEVICE HIGHLIGHTS

Key Features and Benefits of LTC3630AHMSE#TRPBF

Wide 4V to 76V Input Range

Operates from 4V to 76V input, supporting a broad spectrum of high-voltage industrial, automotive, and avionics power sources.

Integrated Synchronous Rectification

Internal high-side and low-side power MOSFETs with synchronous operation for highest efficiency, eliminating the need for external Schottky diodes.

Programmable Peak Current Limit

Adjustable maximum output current from 50mA to 500mA, providing a simple method for optimizing efficiency and reducing output ripple and component size.

Low Quiescent Current (12µA)

12µA typical DC supply current while maintaining a regulated output voltage at no load, combined with Burst Mode® operation for high efficiency across a broad range of load currents.

Flexible Output Configuration

0.8V ±1% feedback voltage reference with programmable 1.8V, 3.3V, 5V or adjustable output. No compensation required. 100% duty cycle low dropout operation.

AEC-Q100 Qualified

Qualified for automotive applications with operation from –40°C to +150°C junction temperature, suitable for harsh automotive and industrial environments.

REFERENCE DATA

Technical Specifications for LTC3630AHMSE#TRPBF

Part Number	LTC3630AHMSE#TRPBF	Manufacturer	Analog Devices
Device Type	Synchronous Step-Down DC/DC Converter	Topology	Buck
Input Voltage Range (V_IN)	4V to 76V	Output Voltage Range (V_OUT)	0.8V to V_IN
Output Current (Max)	500mA	Programmable Current Limit	50mA to 500mA
Feedback Voltage Reference	0.8V ±1%	Quiescent Current (I_Q)	12µA (Typical, No Load)
Integrated Power Switches	High-Side and Low-Side (Synchronous)	Compensation	Not Required
Duty Cycle	100% (Low Dropout Operation)	Soft-Start	Internal and External
Output Configuration	Positive or Negative	Programmable Outputs	1.8V, 3.3V, 5V or Adjustable
RUN Pin Threshold	Precise	Paralleling	Supported via Feedback Comparator Output
Package / Case	16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad	Supplier Device Package	16-MSOP-EP (MSE16)
Package Body Size	3.00mm × 4.04mm	Pin Count	12 (Plus Exposed Pad)
Mounting Type	Surface Mount	Operating Temperature (T_J)	-40°C to +150°C
AEC-Q100 Qualification	Yes	Packaging	Tape & Reel (2,500 per Reel)
RoHS	ROHS3 Compliant	Product Status	Active

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 LTC3630AHMSE#TRPBF

Output Voltage & Current Limit Programming

The LTC3630AHMSE#TRPBF offers flexible output configuration:

Output Voltage Setting: Programmable to 1.8V, 3.3V, 5V, or adjustable via external resistor divider using the 0.8V ±1% feedback reference
Peak Current Limit: Programmable from 50mA to 500mA via an external resistor on the I_SET pin, allowing optimization of efficiency, output ripple, and component size
No Compensation Required: The internal control loop is optimized for a wide range of output capacitors and inductors
Soft-Start: Internal soft-start is provided by default; an external capacitor on the SS pin can extend the soft-start time
Paralleling: Multiple LTC3630A devices can be paralleled for higher current applications using the feedback comparator output

PCB and System-Level Guidance

Buck converter performance depends on layout and component selection:

Input Capacitor: Place a low-ESR ceramic input capacitor close to the V_IN pin and PGND for stable operation
Inductor Selection: Choose based on switching frequency, output current, and ripple requirements; the LTC3630A operates with a wide range of inductor values
Output Capacitor: Select based on output ripple and transient response requirements; ceramic capacitors are recommended
Exposed Pad: The exposed thermal pad on the MSE16 package must be soldered to the PCB ground plane for optimal thermal performance
Feedback Resistors: Keep the FB pin trace short and away from switching nodes for accurate voltage regulation
Verify the recommended PCB footprint from the official datasheet prior to production

16-LEAD MSOP-EP (3.00mm × 4.04mm)

Pin Configuration Reference for LTC3630AHMSE#TRPBF

LTC3630A

MSOP TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The MSOP package has 12 pins (plus an exposed thermal pad) with a 3.00mm × 4.04mm body size. The exposed pad must be soldered to the PCB ground plane for optimal thermal performance.

1 V_IN Input Supply Voltage - 4V to 76V

2 RUN Precise Run Pin Threshold - Enable/Disable Input

3 V_FB Feedback Voltage Input - Connect Resistor Divider from V_OUT

4 I_SET Peak Current Limit Setting - External Resistor Programs 50mA to 500mA

5 SS Soft-Start Control - External Capacitor Extends Internal Soft-Start

6 GND Ground

7 SW Switching Output - Connect to Power Inductor

8 BOOST Bootstrap Capacitor Connection - Connect Capacitor to SW Pin

9 V_IN Input Supply Voltage - 4V to 76V

10 NC No Internal Connection - Leave Floating or Connect to GND

11 NC No Internal Connection - Leave Floating or Connect to GND

12 V_OUT Regulated Output Voltage - Connect to Load

EP GND Exposed Thermal Pad - Must Be Soldered to PCB Ground Plane

APPLICATION AREAS

Typical Applications for LTC3630AHMSE#TRPBF

Industrial Control Supplies

Wide 4V to 76V input range and robust design make this converter ideal for industrial control systems and factory automation power supplies.

Medical Devices

Low quiescent current and high efficiency suit portable and stationary medical devices requiring reliable, low-noise power conversion.

Portable Instruments

12µA quiescent current and Burst Mode® operation extend battery life in portable test and measurement instruments.

Automotive Systems

AEC-Q100 qualified with operation from –40°C to +150°C junction temperature, suitable for automotive body control, infotainment, and ADAS power supplies.

Avionics

Wide input voltage range and robust protection features meet the demanding requirements of avionics and aerospace power systems.

High-Voltage Battery Systems

Directly steps down from high-voltage battery stacks and industrial bus voltages without the need for intermediate conversion stages.

REPLACEMENT GUIDANCE

Selecting an Alternative for LTC3630AHMSE#TRPBF

A replacement for the LTC3630AHMSE#TRPBF should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Analog Devices product pages and datasheets.

Topology: Synchronous Buck

Input voltage: 4V–76V

Output current: 500mA

Output voltage: 0.8V–V_IN

Quiescent current: 12µA

Package: 16-MSOP-EP

Temperature range: –40°C to 150°C

AEC-Q100: Yes

Pin-to-pin and functionally compatible alternatives (same family, different package or temperature grade):

Part Number	Package	Temperature Grade	Packaging
LTC3630AHMSE#TRPBF	16-MSOP-EP	H-Grade (-40°C to 150°C)	Tape & Reel
LTC3630AHMSE#PBF	16-MSOP-EP	H-Grade (-40°C to 150°C)	Tube
LTC3630AEMSE#TRPBF	16-MSOP-EP	E-Grade (-40°C to 125°C)	Tape & Reel
LTC3630AHDHC#TRPBF	16-DFN (3mm × 5mm)	H-Grade (-40°C to 150°C)	Tape & Reel
LTC3630AIDHC#TRPBF	16-DFN (3mm × 5mm)	I-Grade (-40°C to 125°C)	Tape & Reel

All alternative part numbers listed above are documented in the official Analog Devices product pages and datasheets. The LTC3630AHMSE#TRPBF is the H-Grade (–40°C to 150°C) version in a 16-lead MSOP package with an exposed pad and tape-and-reel packaging (2,500 units per reel). For tube packaging in the same package, consider LTC3630AHMSE#PBF. For E-Grade (–40°C to 125°C) operation in the same package, consider LTC3630AEMSE#TRPBF. For the DFN package option (3mm × 5mm), consider LTC3630AHDHC#TRPBF (H-Grade) or LTC3630AIDHC#TRPBF (I-Grade). Select based on temperature grade, package, and packaging requirements.

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MANUFACTURER INFORMATION

Analog Devices

The LTC3630A (LTC3630AHMSE#TRPBF) belongs to the LTC3630A family of high-efficiency, 76V, 500mA synchronous step-down converters from Analog Devices (originally Linear Technology). The device features internal high-side and synchronous low-side power switches, Burst Mode® operation with only 12µA typical quiescent current, and a programmable peak current limit from 50mA to 500mA. With its wide 4V to 76V input range, the LTC3630A is a robust converter suited for regulating a wide variety of power sources in industrial control, medical, portable instrument, automotive, and avionics applications. The device is available in thermally-enhanced DFN and MSOP packages, is AEC-Q100 qualified, and is recommended for new designs.

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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: LTC3630AHMSE#TRPBF

Manufacturer: Analog Devices Inc.

Package: 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad

Series: -

Package/Case: 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad

Packaging: Tape & Reel (TR)

Product Status: Active

Function: Step-Down

Output Configuration: Positive or Negative

Topology: Buck

Output Type: Adjustable (Programmable)

Number of Outputs: 1

Voltage - Input (Min): 4V

Voltage - Input (Max): 76V

Voltage - Output (Min/Fixed): 0.8V (1.8V, 3.3V, 5V)

Voltage - Output (Max): 76V

Current - Output: 500mA

Frequency - Switching: -

Synchronous Rectifier: Yes

Operating Temperature: -40°C ~ 150°C (TJ)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 16-MSOP-EP

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Part Number: LTC3630AHMSE#TRPBF

Manufacturer: Analog Devices Inc.

Package: 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad

Category: Voltage Regulators - DC DC Switching Regulators

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