All trademarks are the property of their respective owners.
DescriptionThe LM43602PWPT regulator is an easy-to-use synchronous step-down DC-DC converter capable ofdriving up to 2 A of load current from an input voltage ranging from 3.5 V to 36 V (42-V absolutemaximum). The LM43602PWPT provides exceptional efficiency, output accuracy, and dropout voltage in avery small solution size. An extended family is available in 0.5-A, 1-A, and 3-A load currentoptions in pin-to-pin compatible packages. Peak current-mode control is employed to achieve simplecontrol loop compensation and cycle-by-cycle current limiting. Optional features such asprogrammable switching frequency, synchronization, power-good flag, precision enable, internal softstart, extendable soft start, and tracking provide a flexible and easy-to-use platform for a widerange of applications. Discontinuous conduction and automatic frequency modulation at light loadsimprove light-load efficiency. The family requires few external components and terminal arrangementallows simple, optimum PCB layout. Protection features include thermal shutdown,VCC undervoltage lockout, cycle-by-cycle current limit, and output shortcircuit protection. The LM43602PWPT 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.
Feature
- 27-μA Quiescent Current in Regulation
- High Efficiency at LightLoad (DCM and PFM)
- Meets EN55022/CISPR 22 EMI standards
- Integrated SynchronousRectification
- Adjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHzDefault)
- Frequency Synchronization to ExternalClock
- Internal Compensation
- Stable with Almost AnyCombination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
- Power-GoodFlag
- Soft-Start into a Pre-Biased Load
- Internal Soft Start:4.1 ms
- Extendable Soft-Start Time by External Capacitor
- Output Voltage TrackingCapability
- Precision Enable to Program System UVLO
- OutputShort Circuit Protection with Hiccup Mode
- Overtemperature Thermal ShutdownProtection
- Create a Custom Design Using the LM43602 with theWEBENCH?Power Designer
All trademarks are the property of their respective owners.
DescriptionThe LM43602 regulator is an easy-to-use synchronous step-down DC-DC converter capable ofdriving up to 2 A of load current from an input voltage ranging from 3.5 V to 36 V (42-V absolutemaximum). The LM43602 provides exceptional efficiency, output accuracy, and dropout voltage in avery small solution size. An extended family is available in 0.5-A, 1-A, and 3-A load currentoptions in pin-to-pin compatible packages. Peak current-mode control is employed to achieve simplecontrol loop compensation and cycle-by-cycle current limiting. Optional features such asprogrammable switching frequency, synchronization, power-good flag, precision enable, internal softstart, extendable soft start, and tracking provide a flexible and easy-to-use platform for a widerange of applications. Discontinuous conduction and automatic frequency modulation at light loadsimprove light-load efficiency. The family requires few external components and terminal arrangementallows simple, optimum PCB layout. Protection features include thermal shutdown,VCC undervoltage lockout, cycle-by-cycle current limit, and output shortcircuit 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.
