RT8848A集成电路(IC)PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料
![RT8848A](https://img.114ic.com/dgk/Renders/~~Pkg.Case%20or%20Series/40-TQFN.jpg)
厂商型号 |
RT8848A |
参数属性 | RT8848A 封装/外壳为40-WFQFN 裸露焊盘;包装为卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带;类别为集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器;产品描述:IC PWM CTRLR BUCK WQFN-40 |
功能描述 | 降压 |
文件大小 |
3.16154 Mbytes |
页面数量 |
78 页 |
生产厂商 | Richtek USA Inc. |
企业简称 |
RichTek【台湾立绮】 |
中文名称 | 立绮科技官网 |
原厂标识 | ![]() |
数据手册 | |
更新时间 | 2024-6-23 19:07:00 |
RT8848A规格书详情
General Description
The RT8848A/B is a 8/7/6/5/4/3/2/1 multi-phase
synchronous Buck controller which is optimized for high
performance graphic microprocessor and support
nVidia OVR4i+ spec with PWM-VID interface. The
RT8848A/B adopts AC G-NAVPTM (Green Native AVP)
which is Richtek's proprietary topology derived from
finite DC gain of internal GM amplifier with current
mode control. By utilizing the AC G-NAVPTM topology,
the operating frequency of the RT8848A/B varies with
VID, load and input voltage to further enhance the
efficiency even in CCM. Besides, for current sensing
application, the RT8848A/B can support either a
traditional DCR network current sense from inductor or
smart power stage (SPS) which can directly provide a
current monitor signal (IMON).
The RT8848A/B features external reference input and
PWM-VID dynamic output voltage control, in which the
output voltage is regulated and tracks external input
reference voltage. The RT8848A/B can set internal
RAMP amplitude through PINSETx pin and this can
optimize stability and load transient performance. The
RT8848A/B also provides complete fault protection
functions including over-voltage protection (OVP),
under-voltage protection (UVP), channel over-current
limit (CH_OC), sum output current protection (SOC)
and over-temperature protection (OTP).
Features
Multi-Phase PWM Controller
PWM-VID Dynamic Voltage Control
Support 1.8V PWM-VID Interface
Power State Indicator
LPC (Low Phase Count), PSI = Low
APS (Auto Phase Shedding), PSI = Mid
HPC (High Phase Count), PSI = High
External Reference Input Control
8/7/6/5/4/3/2/1 Phase Hardware Setting
Adjustable Soft-Start Time
Adjustable Switching Frequency
Adjustable Phase Current Balance
Support Standby Mode
UVP/OVP/OTP/SOC/CH_OC/TSEN Protection
Adjustable Protection Thresholds
Power Good Indicator
ADC Reporting for IMON, TSEN and VSEN
Support I2C Interface for Programming
RoHS Compliant and Halogen Free
Applications
GPU Core Power for OVR4i+ Spec
RT8848A属于集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器。立绮科技制造生产的RT8848ADC-DC 开关控制器PMIC(电源管理集成电路)DC 到 DC 开关式控制器是用于高效率电路的稳压 IC,其配置为生成高于(突升或步升)或低于(突降或步降)输入电源的输出电源电压。其他拓扑结构可能包括:降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。
产品属性
- 产品编号:
RT8848AGQW
- 制造商:
Richtek USA Inc.
- 类别:
集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器
- 包装:
卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带
- 输出类型:
PWM 信号
- 功能:
降压
- 输出配置:
正
- 拓扑:
降压
- 输出阶段:
8
- 电压 - 供电 (Vcc/Vdd):
2.8V ~ 24V
- 频率 - 开关:
300kHz
- 同步整流器:
是
- 时钟同步:
无
- 串行接口:
I²C
- 控制特性:
限流,使能,频率控制,相位控制,电源良好,斜坡,软启动
- 工作温度:
-10°C ~ 105°C
- 安装类型:
表面贴装型
- 封装/外壳:
40-WFQFN 裸露焊盘
- 供应商器件封装:
40-WQFN(5x5)
- 描述:
IC PWM CTRLR BUCK WQFN-40
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
RICHTEK |
20+ |
WQFN7x7-4 |
36500 |
原装现货/放心购买 |
询价 | ||
RICHTEK |
23+ |
QFN |
20000 |
原厂原装正品现货 |
询价 | ||
RICHTEK |
2016+ |
QFN |
6000 |
公司只做原装,假一罚十,可开17%增值税发票! |
询价 | ||
RICHTEK |
2020+ |
QFN |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
RICHIEK |
18+ |
QFN |
85600 |
保证进口原装可开17%增值税发票 |
询价 | ||
RICHTEK/立锜 |
2021+ |
QFN |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
立锜 |
22+ |
NA |
500000 |
万三科技,秉承原装,购芯无忧 |
询价 | ||
原装 |
1923+ |
QFN |
6800 |
只做全新原装公司现货价格优惠可谈 |
询价 | ||
22+ |
360000 |
进口原装房间现货实库实数 |
询价 | ||||
RICHTEK |
22+ |
QFN |
28600 |
只做原装正品现货假一赔十一级代理 |
询价 |