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RTQ8826 PDF预览

RTQ8826

更新时间： 2024-11-13 17:00:51
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
79页 2760K
描述
Single Rail 6-Phase PWM Controller with PMBus

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RTQ8826 数据手册

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RTQ8826  
Single Rail 6-Phase PWM Controller with PMBus  
General Description  
The RTQ8826 is a 6/5/4/3/2/1 phase synchronous buck  
Features  
⚫ 6/5/4/3/2/1 Phase PWM Controller  
TM  
TM  
⚫ G-NAVP  
(Green Native Adaptive Voltage  
controller. The RTQ8826 adopts G-NAVP  
(Green  
Positioning) Topology  
Native AVP), which is Richtek’s proprietary topology  
derived from finite DC gain of EA amplifier with current  
mode control, making it easy to set the droop to support  
all CPU/Microprocessor requirements of AVP (Adaptive  
⚫ Output Voltage Ranges from 0.25V to 1.516V  
⚫ Embedded LDO for Dr.MOS 3.3V PWM Level  
⚫ Pin Programmable 27 VBOOT Voltages  
⚫ Current Sensing by Either Current Type or Voltage  
Type SPS  
TM  
Voltage Positioning). Based on the G-NAVP topology,  
the RTQ8826 features a new generation of quick  
response mechanism (Adaptive Quick Response, AQR)  
to optimize AVP performance during load transient and  
reduce output capacitors. The RTQ8826 supports VID  
on-the-fly function with four different slew rates via  
PMBus command setting. The DAC converts the  
VOUT_COMMAND code ranging from 0.25V to 1.516V  
with 1.953mV per step. The RTQ8826 integrates a high  
accuracy ADC for platform and function settings, such  
as SPS type, PMBus address, boot voltage and load-  
line. The RTQ8826 provides reset Vout function, Vout  
to be set to the VBOOT value while the RESET# pin is  
asserted low. The RTQ8826 provides VR_Ready and  
thermal indicators. It also features complete fault  
protection functions including over-voltage (OV), under-  
voltage (UV), slow over-current (SLOW_OC), fast over-  
current (Fast_OC), over-temperature (OT) and under-  
voltage lockout (UVLO). The RTQ8826 supports  
several functions which can be set by I2C/PMBus  
interface.  
⚫ Digital Current Balancing with Programmable  
Gain for Thermal Balancing  
⚫ Differential Output Voltage Sense for High Output  
Accuracy  
⚫ Supports Start-Up Into Pre-Bias Voltage  
⚫ Pin Selection for Enabling Load-Line Function  
⚫ Supports Returning to VBOOT from Existing  
Voltage or from 0V  
⚫ PMBus v1.3 Compliant Serial Interface  
Pin Selectable 16 Addresses  
1.8V and 3.3V Logic Level Compliant  
SMBALERT#  
Internal Non-Volatile Memory (NVM) to Store  
Custom Configurations  
Programmable Power Up/Down Timing  
Monitoring for V  
, I  
and Temperature  
OUT OUT  
Selectable Latch or Autonomous Recovery  
After Shutdown Due to Fault  
Extensive Fault Detection and Protection  
Capability  
Applications  
VIN & VCC Input Pins UVLO  
⚫ Networking system  
Averaged Output SLOW/FAST_OC Protection  
Output OV & UV Protection  
⚫ Telecom, Datacom and Server system  
⚫ Point-of-load power supply (DSP, ASIC, FPGA)  
Output Temperature Warning & Protection  
Indicator for VR_Ready & VR_Hot#  
⚫ Small 48-Lead WQFN Package  
Simplified Application Circuit  
RTQ8826  
SPS  
PWM1  
PWM2  
PWM3  
PWM4  
PWM5  
VR_HOT#  
SMBALERT#  
I2C_SCL  
SPS  
SPS  
SPS  
SPS  
VOUT  
To System Host/  
Bus Master  
I2C_SDA  
VR_READY  
RESET#  
EN  
PWM6  
SPS  
DRVEN  
To SPS  
Copyright © 2024 Richtek Technology Corporation. All rights reserved.  
is a registered trademark of Richtek Technology Corporation.  
DSQ8826-02 February 2024  
www.richtek.com  
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