Rt8293al Datasheet Pdf
Rt8293al Ic Datasheet Pdf
Rt8293al Datasheet Pdf

Richtek Technology Electronic Components Datasheet

Single Synchronous Buck Controller

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RT8202/A/B

General Description

The RT8202/A/B PWM controller 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

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

The RT8202/A/B 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 RT8202/A/B is intended for CPU

core, chipset, DRAM, or other low voltage supplies as

low as 0.75V. RT8202 is available in WQFN-16L 4x4,

RT8202A is available in WQFN-16L 3x3 and RT8202B is

 Ultra-High Efficiency

RDS(ON) Sense (Lossless Limit) or Sense Resistor

 Quick Load Step Response within 100ns

 Adjustable 0.75V to 3.3V Output Range

 Resistor Programmable Frequency

 2 Steps Current Limit During Soft-Start

 Power Good Indicator

Applications

 CPU Core Supply

Pin Configurations

RT8202/A/B

Package Type

QW : WQFN-16L 3x3 (W-Type) (RT8202A)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Richtek products are :

 RoHS compliant and compatible with the current require-

 Suitable for use in SnPb or Pb-free soldering processes.

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

16 15 14 13

VDD

PGOOD

11 PHASE

9 VDDP

WQFN-16L 4x4/WQFN-16L 3x3

VOUT

GND

12 PHASE

10 VDDP

WQFN-14L 3.5x3.5

is a registered trademark of Richtek Technology Corporation.

Rt8293al Datasheet Pdf

Richtek Technology Electronic Components Datasheet

Single Synchronous Buck Controller

No Preview Available !

Typical Application Circuit

CCM/DEM

1µF

51k

1µF

BAT254

TON

VDDP

VDD

LGATE

GND

VIN

R5 0

2.4µH

R7 C7

C5 R8 C6

Figure 1. Output Voltage Setting for VOUT < 3.3V Application

CCM/DEM

1µF

51k

1µF

BAT254

TON

VDDP

VDD

LGATE

GND

VIN

R5 0

2.4µH

R7 C7

VOUT FB

Figure 2. Output Voltage Setting for VOUT > 3.3V Application

is a registered trademark of Richtek Technology Corporation.

Update Alert Share The RT8293A is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 23V input supply. The RT8293A's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors.
The RT8293A is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 23V input supply. The RT8293A's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors.
3A, 23V, 340kHz Synchronous Step-Down Converter, ±1.5% High Accuracy Feedback Voltage, 4.5V to 23V Input Voltage Range, 3A Output Current, Integrated N-MOSFET Switches, Current Mode Control, Fixed Frequency Operation: 340kHz, Output Adjustable from 0.8V to 20V, Up to 95% Efficiency, Programmable Soft-Start, Stable with Low-ESR Ceramic Output Capacitors, Cycle-by-Cycle Over Current.

Rt8293al Ic Datasheet Pdf

Richtek Technology Electronic Components Datasheet

Single Synchronous Buck Controller

Rt8293al Datasheet Pdf

Single Synchronous Buck Controller

Rt8293al Ic Datasheet Pdf

Complete DDRII/DDRIII/Low-Power DDRIII/DDRIV Memory Power Supply Controller