Datasheet > ISL62776HRTZ

ISL62776HRTZ

更新时间： 2024-01-05 03:28:23

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
51页	738K
描述
Switching Regulator/Controller

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ISL62776HRTZ 技术参数

是否Rohs认证：	符合	生命周期：	Active
Reach Compliance Code：	compliant	风险等级：	5.74
Base Number Matches：	1

ISL62776HRTZ 数据手册

Datasheet

ISL62776

Multiphase PWM Regulator for AMD CPUs Using SVI2

The ISL62776 is fully compliant with AMD Serial VID

Features

Interface 2.0 (SVI2) and provides a complete solution

for microprocessor and graphics processor core

power. The ISL62776 controller supports two Voltage

Regulators (VRs) that use external drivers for

maximum flexibility. The Core VR can be configured

for 4-, 3-, 2-, or 1-phase operation and the SOC VR

supports 1-phase operation. The two VRs share a

serial control bus to communicate with the AMD CPU

and achieve lower cost and smaller board area

compared with two-chip solutions.

• Supports AMD SVI 2.0 serial data bus interface

○ Serial VID clock frequency range: 100kHz to

25MHz

• Dual output controller with PWM output

• Precision voltage regulation

○ 0.5% system accuracy over-temperature

○ 0.5V to 1.55V in 6.25mV steps

○ Enhanced load-line accuracy

The R3™ modulator, based on the Renesas Robust

Ripple Regulator (R3) technology, has many

advantages compared to traditional modulators.

These include faster transient settling time, variable

switching frequency in response to load transients,

and improved light-load efficiency due to diode

emulation mode with load-dependent, low-switching

frequency.

• Supports multiple current sensing methods

○ Lossless inductor DCR current sensing

○ Precision resistor current sensing

• Programmable phase operation for both Core and

SOC VR outputs

• Superior noise immunity and transient response

• Output current and voltage telemetry

• Differential remote voltage sensing

• High efficiency across entire load range

• Programmable slew rate

Both outputs of the ISL62776 support DC Resistance

(DCR) current sensing with single NTC thermistor for

DCR temperature compensation or accurate resistor

current sensing. Both outputs use remote voltage

sense, adjustable switching frequency, Overcurrent

Protection (OCP), and power-good.

• Programmable VID offset and droop on both

outputs

Applications

• Programmable switching frequency for both outputs

• Excellent dynamic current balance between phases

• AMD CPU/GPU core power

• Notebook computers

• Protection: OCP/WOC, OVP, PGOOD, and thermal

monitoring

Related Literature

For a full list of related documents, visit our website:

• ISL62776 device page

• Small footprint 40 Ld 5x5 TQFN package

○ Pb-free (RoHS compliant)

0.850

0.800

0.750

Core

SOC

0.700

0.650

0.600

100

120

Load Current (A)

Figure 1. Output Voltage vs Load

R16DS0044EU0100 Rev.1.00

Oct.22.19

Page 1 of 51

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