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Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
5.5 |
Vin (max) (V) |
18 |
Vin (min) (V) |
4.5 |
Vout (max) (V) |
5.5 |
Vout (min) (V) |
0.76 |
Features |
Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification |
Control mode |
D-CAP2 |
Operating temperature range (°C) |
-40 to 85 |
Iq (typ) (A) |
0.0009 |
Duty cycle (max) (%) |
95 |
HTSSOP (PWP)-14-32 mm² 5 x 6.4
The TPS54526 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54526 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54526 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54526 to maintain high efficiency during lighter load conditions. The TPS54526 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54526 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.