RT8202AGQW

Product Summary

The RT8202AGQW is a PWM controller. It provides 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 RT8202AGQW achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs. The applications of the RT8202AGQW include Notebook Computers, CPU Core Supply, Chipset/RAM Supply as Low as 0.75V.

Parametrics

RT8202AGQW absolute maximum ratings: (1)Input Voltage, TON to GND: -0.3V to 32V; (2)BOOT to GND: -0.3V to 38V; (3)PHASE to BOOT:-6V to 0.3V; (4)VDD, VDDP, VOUT, EN/DEM, FB, PGOOD to GND:-0.3V to 6V; (5)UGATE to PHASE:-0.3V to 6V; (6)OC to GND: -0.3V to 32V; (7)LGATE to GND:-0.3V to 6V; (8)PGND to GND:-0.3V to 0.3V; (9)Power Dissipation, PD @ TA = 25℃ WQFN-16L 4x4: 1.852W; (10)WQFN-16L 3x3: 1.471W; (11)WQFN-14L 3.5x3.5: 1.667W; (12)Package Thermal Resistance (Note 2) WQFN-16L 4x4, θJA: 54℃/W; (13)WQFN-16L 4x4, θJC: 7℃/W; (14)WQFN-16L 3x3, θJA: 68℃/W; (15)WQFN-16L 3x3, θJC: 7.5℃/W; (16)WQFN-14L 3.5x3.5, θJA: 60℃/W; (17)WQFN-14L 3.5x3.5, θJC: 7℃/W; (18)Lead Temperature (Soldering, 10 sec.): 260℃; (19)Junction Temperature: 150℃; (20)Storage Temperature Range: -65℃ to 150℃; (21)ESD Susceptibility (Note 3) HBM (Human Body Mode): 2kV; (22)MM (Machine Mode): 200V.

Features

RT8202AGQW features: (1)Ultra-High Efficiency; (2)Resistor Programmable Current Limit by Low Side RDS(ON) Sense (Lossless Limit) or Sense Resistor (High Accuracy); (3)Quick Load Step Response within 100ns; (4)1% VOUT Accuracy over Line and Load; (5)Adjustable 0.75V to 3.3V Output Range; (6)4.5V to 26V Battery Input Range; (7)Resistor Programmable Frequency; (8)Over/Under Voltage Protection; (9)2 Steps Current Limit During Soft-Start; (10)Drives Large Synchronous-Rectifier FETs; (11)Power Good Indicator; (12)RoHS Compliant and 100% Lead (Pb)-Free.

Diagrams