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Richtek RT8298A | Demoboard RT8298AGSP
6A, 24V, 600kHz Step-Down Converter with Synchronous Gate Driver
Overview
| Topology | Buck Converter |
| Input voltage | 12 V |
| Output 1 | 3.3 V / 6 A |
Description
The RT8298A is a synchronous step-down DC/DC converter with an integrated high side internal power MOSFET and a gate driver for a low side external power MOSFET. It can deliver up to 6A output current from a 4.5V to 24V input supply. The RT8298A's current mode architecture allows the transient response to be optimized over a widerinput voltage and load range. Cycle-by-cycle current limit provides protection against shorted outputs and soft-starteliminates input current surge during start-up. The RT8298A is synchronizable to an external clock with frequency ranging from 300kHz to 1.5MHz.
Features
4.5V to 24V Input Voltage Range
6A Output Current
45mΩ Internal High Side N-MOSFET
Current Mode Control
600kHz Switching Frequency
Adjustable Output from 0.8V to 15V
Up to 95% Efficiency
Internal Compensation
Stable with Ceramic Capacitors
Synchronous External Clock : 300kHz to 1.5MHz
Cycle-by-Cycle Current Limit
Input Under Voltage Lockout
Output Under Voltage Protection
Power Good Indicator
Thermal Shutdown Protection
Force PWM Turn On
RoHS Compliant and Halogen Free
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | Material | LR(µH) | fres(MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCC SMT High Current Cube Inductor, 2.2 µH, 14.8 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCC SMT High Current Cube Inductor | Inductance2.2 µH | Performance Rated Current14.8 A | Saturation Current @ 10%11.3 A | Saturation Current @ 30%12.9 A | DC Resistance5.6 mΩ | MaterialFerrite | Rated Inductance1.4 µH | Self Resonant Frequency97 MHz |