0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
6 |
Vin (max) (V) |
17 |
Vin (min) (V) |
4.5 |
Vout (max) (V) |
15 |
Vout (min) (V) |
0.8 |
Features |
Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 150 |
Iq (typ) (A) |
0.0006 |
Duty cycle (max) (%) |
98 |
VQFN (RGY)-14-12.25 mm² 3.5 x 3.5
The TPS54620 in thermally enhanced 3.50 mm × 3.50 mm QFN package is a full featured 17-V, 6-A, synchronous, step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the footprint of the inductor.
The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open-drain power good pins.
Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
