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General Description
The RTQ8825 is a dual output voltage rail 3+2-phase controller: a 3/2/1/0 phase synchronous buck controller, the rail A and a 2/1/0 phase synchronous buck controller, the rail B. The RTQ8825 adopts G-NAVPTM (Green 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 Voltage Positioning). Based on the G-NAVPTM topology, the RTQ8825 features a new generation of quick response mechanism (Adaptive Quick Response, AQR) to optimize AVP performance during load transient and reduce output capacitors. The RTQ8825 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 RTQ8825 integrates a high accuracy ADC for platform and function settings, such as SPS type, PMBus address, boot voltage and load-line. The RTQ8825 provides reset Vout function, Vout to be set to the VBOOT value while RESET# pin is asserted low. The RTQ8825 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 RTQ8825 more supports several functions which can be set by I2C/PMBus interface.
Applications
Networking system
Telecom, Datacom and Server system
Point-of-load power supply (DSP, ASIC, FPGA)
Features
3/2/1/0 Phase (rail A) + 2/1/0 Phase (rail B) PWMController
G-NAVPTM (Green Native Adaptive VoltagePositioning) Topology
Each Output Voltage Ranges 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 VoltageType SPS
Digital Current Balancing With Programmable Gainfor Thermal Balancing
Differential Output Voltage Sense for HighOutput Accuracy
Supports Start-Up Into Pre-Bias Voltage
Pin Selection for Enabling Load-Line Function
Supports Returning to VBOOT from ExistingVoltage 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 StoreCustom Configurations
Programmable Power Up/Down Timing
Monitoring for VOUT, IOUT and Temperature
Selectable Latch or Autonomous RecoveryAfter Shutdown Due to Fault
Extensive Fault Detection and ProtectionCapability
VIN & VCC Input Pins UVLO
Averaged Output SLOW/FAST_OC Protection
Output OV & UV Protection
Output Temperature Warning & Protection
Indicator for VR_Ready & VR_Hot#
Small 48-Lead WQFN Package
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
23+ |
N/A |
58600 |
一级代理放心采购 |
询价 | |||
ROHM/罗姆 |
21+ |
SOT-23 |
30100 |
只做正品原装现货 |
询价 | ||
ROHM |
2023+ |
SOT23 |
700000 |
柒号芯城跟原厂的距离只有0.07公分 |
询价 | ||
ROHM |
22+ |
TSMT3 |
3000 |
原装正品,支持实单 |
询价 | ||
RICHTEK/立锜 |
21+ |
QFN |
15000 |
询价 | |||
原装ROHM |
2023+ |
SOT-23 |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
GC |
23+ |
NA/ |
30975 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
RICHTEK??????????????????????? |
23+ |
N/A |
2856 |
挂了就有,工厂库存,N价优 |
询价 | ||
ROHM/罗姆 |
22+ |
SOT-23 |
354000 |
询价 | |||
ROHM |
SOT23 |
699839 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 |