Controller IC Chip - RT8204BGQW, RT8204, RT8204B FR= FR=AH FR=AM QFN-16
Single Synchronous Buck with LDO Controller IC Chip - RT8204BGQW, RT8204, RT8204B QFN-16
Part number: | RT8204 | Pin: | QFN-16 | ||
Part type: | Single Synchronous Buck with LDO Controller IC Chip | Κατάσταση: | Καινούργιο | ||
Revision: | Εγγύηση: | Χωρίς Εγγύηση |
Συμβατά P/N & μοντέλα:
RT8204BGQW, RT8204, RT8204B, FR=, FR=AH, FR=AM
The RT8204B PWM controller provides the high efficiency,
excellent transient response, and high DC output accuracy
needed for stepping down high voltage batteries to
generate low voltage CPU core, I/O, and chipset RAM
supplies in notebook computers.
The constant-on-time PWM control scheme handles wide
input/output voltage ratios with ease and provides 100ns
“instant-on” response to load transients while maintaining
a relatively constant switching frequency.
The RT8204B achieves high efficiency at a reduced cost
by eliminating the current sense resistor found in
traditional current mode PWMs. Efficiency is further
enhanced by its ability to drive very large synchronous
rectifier MOSFETs. The buck conversion allows this device
to directly step down high voltage batteries for the highest
possible efficiency. The RT8204B is intended for CPU core,
chipset, DRAM, or other low voltage supplies as low as
0.75V.
A built-in LDO controller can drive an external N-MOSFET
to provide a second output voltage from PWM output or
other power source. The RT8204B can provide adjustable
voltage down to 0.75V and maximum output voltage is
depended on the selected MOSFET. The internal 0.75V
reference voltage with ±1.5% accuracy provides tight
regulation for the output voltage. The independent enable
control, open drain power good indicator, under voltage
protection and soft start make RT8204B to power the
system friendly. The RT8204B is available in WQFN-16L
3x3 package