LM43603AQPWPRQ1 Switching Voltage Regulators Automotive Qualified 3.5V to 36V
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Switching Voltage Regulators |
| RoHS: | Details |
| Mounting Style: | SMD/SMT |
| Package / Case: | HTSSOP-16 |
| Topology: | Buck |
| Output Voltage: | 1 V to 28 V |
| Output Current: | 3 A |
| Number of Outputs: | 1 Output |
| Input Voltage, Min: | 3.5 V |
| Input Voltage, Max: | 36 V |
| Quiescent Current: | 27 uA |
| Switching Frequency: | 200 kHz to 2.2 MHz |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Qualification: | AEC-Q100 |
| Series: | LM43603-Q1 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Development Kit: | LM43603PWPEVM |
| Input Voltage: | 3.5 V to 36 V |
| Moisture Sensitive: | Yes |
| Product Type: | Switching Voltage Regulators |
| Shutdown: | Shutdown |
| Factory Pack Quantity: | 2000 |
| Subcategory: | PMIC - Power Management ICs |
| Supply Voltage - Min: | 3.5 V |
| Type: | Synchronous Step-Down Voltage Converter |
| Unit Weight: | 0.003217 oz |
♠ LM43603-Q1 3.5-V to 36-V, 3-A Synchronous Step-Down Voltage Converter
The LM43603-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 3 A of load current from an input voltageranging from 3.5 V to 36 V (42 V absolute maximum).
The LM43603-Q1 provides exceptional efficiency, output accuracy, and dropout voltage in a very small solution size. An extended family is available in 0.5-A, 1-A, and 2-A load current options in pin-to-pin compatible packages.
Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft start, and tracking provide a flexible and easy to use platform for a wide range of applications.
Discontinuous conduction and automatic frequency modulation at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short circuit protection.
The LM43603-Q1 device is available in the HTSSOP (PWP) 16- pin leaded package (6.6 mm × 5.1 mm × 1.2 mm). The LM43603A-Q1 version is optimized for PFM operation and recommended for new design. The device is pinto-pin compatible with LM4360x and LM4600x family.
• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to +125°C Operating Junction Temperature
• 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-Q1 With the WEBENCH® Power Designer
• Sub-AM Band Automotive
• Industrial Power Supplies
• General Purpose Wide VIN Regulation
• High Efficiency Point-Of-Load Regulation
• Telecommunications Systems
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