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LM43602PWPR Regulator IC Positive Adjustable 1V 1 Output 2A 16-PowerTSSOP
Features of LM43602PWPR
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 Program System UVLO
• Output Short Circuit Protection with Hiccup Mode
• Overtemperature Thermal Shutdown Protection
• Create a Custom Design Using the LM43602 with the WEBENCH® Power Designer.
Product Attributes of LM43602PWPR
| TYPE | DESCRIPTION |
|---|---|
| Mfr | TI |
| Series | SIMPLE SWITCHER® |
| Product Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 1V |
| Voltage - Output (Max) | 28V |
| Current - Output | 2A |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 16-PowerTSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 16-HTSSOP |
| Base Product Number | LM43602 |
Applications of LM43602PWPR
• Industrial Power Supplies
• Telecommunications Systems
• Sub-AM Band Automotive
• General Purpose Wide VIN Regulation
• High Efficiency Point-Of-Load Regulation
Description of LM43602PWPR
The LM43602 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 36 V (42-V absolute maximum).
The LM43602 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 3-A load current options in pin-to-pin compatible packages.
Peak current-mode control is employed to achieve simple control loop compensation and cycleby-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 terminal arrangement allows simple, optimum PCB layout. Protection features include
thermal shutdown, VCC undervoltage lockout, cycleby-cycle current limit, and output short circuit protection.
The LM43602 device is available in a 16- lead HTSSOP package (5.1 mm × 6.6 mm × 1.2 mm) and 16-pin VSON package with wettable flanks.
