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RT8228AZQW集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器規(guī)格書PDF中文資料
| 廠商型號 |
RT8228AZQW |
| 參數(shù)屬性 | RT8228AZQW 封裝/外殼為12-WFQFN 裸露焊盤；包裝為卷帶（TR）；類別為集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器；產(chǎn)品描述：IC REG CTRLR BUCK 12WQFN |
| 功能描述 | Single Synchronous Buck PWM Controller |
| 絲印標識 | |
| 封裝外殼 | WQFN-12L / 12-WFQFN 裸露焊盤 |
| 文件大小 |
201.03 Kbytes |
| 頁面數(shù)量 |
15 頁 |
| 生產(chǎn)廠商 | Richtek Technology Corporation |
| 企業(yè)簡稱 |
RichTek【立锜科技】 |
| 中文名稱 | 立锜科技股份有限公司官網(wǎng) |
| 原廠標識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2025-4-30 23:00:00 |
| 人工找貨 | RT8228AZQW價格和庫存，歡迎聯(lián)系客服免費人工找貨 |
RT8228AZQW規(guī)格書詳情
General Description
The RT8228A 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
supplies in notebook computers.
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
a relatively constant switching frequency.
The RT8228A 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 and enter diode emulation mode at
light load condition. The buck conversion allows this device
to directly step down high voltage batteries at the highest
possible efficiency. The Audio Skipping Mode (ASM)
setting maintains the switching frequency above 25kHz,
which eliminates noise in audio applications. The RT8228A
is intended for CPU core, chipset, DRAM, or other low
voltage supplies as low as 0.5V. The RT8228A is available
in a WQFN-12L 2x2 package.
Applications
? Notebook Computers
? CPU Core Supply
? Chipset/RAM Supply as Low as 0.5V
? Generic DC/DC Power Regulator
Features
? Built in 1 0.5V Reference Voltage
? Adjustable 0.5V to 3.3V Output Range
? Quick Load Step Response within 100ns
? 4700ppm/°C Programmable Current Limit by Low
Side RDS(ON) Sensing
? 4.5V to 26V Battery Input Range
? Resistor Programmable Frequency
? Internal Ramp Current Limit Soft-Start Control
? Drives Large Synchronous Rectifier FETs
? Integrated Boost Switch
? Over/Under Voltage Protection
? Thermal Shutdown
? Power Good Indicator
? RoHS Compliant and Halogen Free
產(chǎn)品屬性
- 產(chǎn)品編號：
RT8228AZQW
- 制造商：
Richtek USA Inc.
- 類別：
集成電路（IC） > PMIC - 穩(wěn)壓器 - DC DC 開關(guān)式控制器
- 包裝：
卷帶（TR）
- 輸出類型：
晶體管驅(qū)動器
- 功能：
降壓
- 輸出配置：
正
- 拓撲：
降壓
- 輸出階段：
1
- 電壓 - 供電 (Vcc/Vdd)：
4.5V ~ 5.5V
- 同步整流器：
是
- 時鐘同步：
無
- 控制特性：
限流，使能，導通時間控制，相位控制，電源良好
- 工作溫度：
-40°C ~ 85°C（TA）
- 安裝類型：
表面貼裝型
- 封裝/外殼：
12-WFQFN 裸露焊盤
- 供應商器件封裝：
12-WQFN（2x2）
- 描述：
IC REG CTRLR BUCK 12WQFN
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
RHTEK/立锜 |
24+ |
NA/ |
39 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
RICHTEK/立锜 |
22+ |
QFN |
100000 |
代理渠道/只做原裝/可含稅 |
詢價 | ||
24+ |
WQFN-12L |
20000 |
全新原廠原裝，進口正品現(xiàn)貨，正規(guī)渠道可含稅?。?/div> |
詢價 | |||
RICHTEK/立锜 |
1311+ |
QFN |
200 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
RICHTEK |
24+ |
WQFN-12 |
7850 |
只做原裝正品現(xiàn)貨或訂貨假一賠十! |
詢價 | ||
RICHTEK/立锜 |
2023+ |
QFN |
15000 |
原廠全新正品旗艦店優(yōu)勢現(xiàn)貨 |
詢價 | ||
RICHTEK/立锜 |
23+ |
WQFN-12L |
74148 |
專營Richtek18年原裝正品特價供應 |
詢價 | ||
RICHTEK/立锜 |
21+ |
QFN |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
RICHTEK |
23+ |
WQFN-12 |
2606 |
原廠原裝正品 |
詢價 | ||
RICHTEK |
24+ |
WQFN-12L |
5000 |
全新原裝正品,現(xiàn)貨銷售 |
詢價 |
