0
ACTIVE
Rating |
Automotive |
Topology |
Buck |
Iout (max) (A) |
2.5 |
Vin (max) (V) |
36 |
Vin (min) (V) |
3.5 |
Vout (max) (V) |
20 |
Vout (min) (V) |
1 |
Features |
Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed |
EMI features |
Spread Spectrum |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 150 |
Iq (typ) (A) |
0.000023 |
Duty cycle (max) (%) |
99 |
TI functional safety category |
Functional Safety-Capable |
HTSSOP (PWP)-16-32 mm² 5 x 6.4
The LM636x5-Q1 is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5-Q1 can drive up to 1.5A or 2.5A of load current from an input of up to 36V. The converter has high light load efficiency and output accuracy in a small design size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM636x5-Q1 is available in the HTSSOP 16-pin power package, with PowerPAD™ integrated circuit packageand the WSON 12-pin power package.
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