IC REG BUCK ADJ 3A SYNC 16HTSSOP From a 3.5 V to 36 V input voltage, the LM43603PWPR regulator is a simple synchronous step-down DC-DC converter that can drive up to 3 A of load current (42 V abs max). The article is going to introduce the device’s pinout, features, applications, etc.
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Jan 20, 2022
Hermosa Martin
IC REG BUCK ADJ 3A SYNC 16HTSSOP
From a 3.5 V to 36 V input voltage, the LM43603PWPR regulator is a simple synchronous step-down DC-DC converter that can drive up to 3 A of load current (42 V abs max). The article is going to introduce the device’s pinout, features, applications, etc.
LM43603PWPR
The LM43603PWPR regulator is a simple synchronous step-down DC-DC converter that can drive up to 3 A of load current from a 3.5 V to 36 V input voltage (42 V abs max). In a relatively small solution size, the LM43603 provides remarkable efficiency, output precision, and dropout voltage. In pin to pin compatible packaging, an extended family is offered in 0.5-A, 1-A, and 2-A load current options. To achieve easy control loop compensation and cycle-by-cycle current limiting, peak current-mode control is used. Optional features include programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extended soft-start, and tracking make the platform versatile and easy to utilize for a variety of applications. At light loads, discontinuous conduction and automated frequency modulation improve efficiency. The family only requires a few external components, and the pin configuration enables for easy PCB development. Thermal shutdown, VCC under-voltage lockout, cycle-by-cycle current limit, and output short circuit protection are all included in the protection features.
Symbol
Footprint
3D Model
• 27-µA Quiescent Current in Regulation
• High Efficiency at Light Load (DCM and PFM)
• Meets EN55022/CISPR 22 EMI standards
• Integrated Synchronous Rectification
• Adjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz default)
• Frequency Synchronization to External Clock
• Internal Compensation
• Stable with Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
• Power-Good Flag
• Soft Start into a Pre-Biased Load
• Internal Soft-Start: 4.1 ms
• Extendable Soft-Start Time by External Capacitor
• Output Voltage Tracking Capability
• Precision Enable to a Program System UVLO
• Output Short Circuit Protection with Hiccup Mode
• Overtemperature Thermal Shutdown Protection
• Create a Custom Design Using the LM43603 with the WEBENCH® Power Designer
NA LM43603PWPR technical specifications, attributes, parameters and parts with similar specifications to NA LM43603PWPR.
Texas Instruments LM43603PWPR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM43603PWPR.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 5 days ago) | |
| Factory Lead Time | 6 Weeks | |
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | 16-PowerTSSOP (0.173, 4.40mm Width) | |
| Number of Pins | 16Pins | |
| Weight | 6.39999g | |
| Operating Temperature | -40°C~125°C TJ | |
| Packaging | Tape & Reel (TR) | |
| Series | SIMPLE SWITCHER® | |
| JESD-609 Code | e4 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) | |
| Number of Terminations | 16Terminations | |
| ECCN Code | EAR99 |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Position | DUAL | |
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 260 | |
| Base Part Number | LM43603 | |
| Function | Step-Down | |
| Number of Outputs | 1Output | |
| Voltage - Input (Max) | 36V | |
| Output Voltage | 28V | |
| Output Type | Adjustable | |
| Max Output Current | 3A | |
| Operating Supply Voltage | 36V | |
| Voltage - Input (Min) | 3.5V | |
| Input Voltage-Nom | 12V | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Output Configuration | Positive |
| Product Attribute | Attribute Value | |
|---|---|---|
| Quiescent Current | 27μA | |
| Voltage - Output (Min/Fixed) | 1V | |
| Topology | Buck | |
| Control Mode | CURRENT-MODE | |
| Frequency - Switching | 200kHz~2.2MHz | |
| Control Technique | PULSE WIDTH MODULATION | |
| Synchronous Rectifier | Yes | |
| Height | 1.2mm | |
| Length | 5mm | |
| Width | 4.4mm | |
| Thickness | 1mm | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
• Industrial Power Supplies
• Telecommunications Systems
• Sub-AM Band Automotive
• General Purpose Wide VIN Regulation
• High-Efficiency Point-Of-Load Regulation
Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, micro-controllers, and multi-core processors. The company boasts 45,000 patents around the globe as of 2016.
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