RT6337B中文資料帶 3.3V/5V 線性穩(wěn)壓器的 23V、9A 同步 Buck 轉(zhuǎn)換器數(shù)據(jù)手冊Richtek規(guī)格書
RT6337B規(guī)格書詳情
描述 Description
The RT6337 family are high efficiency synchronous step-down DC-DC converters with pseudo constant switching frequency 500kHz and deliver up to 8A output current. The RT6337A/B and RT6337AH/BH operate from 4.5V to 23V input voltage. The output voltage of RT6337A/AH is programmed between 0.6V to 5.5V and RT6337B/BH is fixed to 3.3V output voltage. The input voltage of RT6337C/CH ranges from 5.2V to 23V and the output voltage of RT6337C/CH is fixed to 5.1V.The RT6337 adopts Advanced Constant On-Time (ACOT?) control architecture that provides ultra-fast transient response and further reduces the external component count. In steady states, the ACOT? operates at nearly constant switching frequency over line, load and output voltage ranges and makes the EMI filter design easier.By setting the voltage of the EN/MODE pin, RT6337 operates either in diode emulation mode (DEM) or ultrasonic mode (USM) at light load. The USM maintains operation frequency above 25kHz, which eliminates the acoustic noise. In the DEM, RT6337 provides the best light-load efficiency and improves the acoustic noise with spread spectrum function.RT6337 provides PGOOD indicator for easy system sequence control. Full protection features are also integrated in the device, including the cycle-by-cycle current limit, OVP, UVP, input UVLO and OTP.All above functions are integrated in a UQFN-23L 3x3 (FC) package.
特性 Features
Input Voltage Range ? RT6337A/B and RT6337AH/BH: 4.5V to 23V ? RT6337C/CH: 5.2V to 23V
Output Voltage ? RT6337A/AH: 0.6V to 5.5V ? RT6337B/BH: 3.3V ? RT6337C/CH: 5.1V
9A Continuous Output Current
Stable with POSCAP and MLCC Capacitor
Fast Transient Response
Diode Emulation Mode (DEM) for Power Saving
Ultrasonic Mode (USM) for Avoiding Acoustic Noise
Pseudo Constant Switching Frequency 500kHz in CCM
Internal Power MOSFET Switch 26mΩ (high-side) and 14mΩ (low-side)
LDO ? RT6337B/BH: 3.3V/100mA ? RT6337C/CH: 5V/100mA
Overcurrent Limit ? RT6337A/AH: Adjustable (10A, 12A or 14A) ? RT6337B/BH/C/CH: 13A
Output Under-/Overvoltage Protection (UVP/OVP) ? RT6337A/B/C: Latched Mode UVP/OVP ? RT6337AH/BH/CH: Hiccup Mode UVP and Non-Latched Mode OVP
Input Undervoltage Lockout (UVLO)
Over-Temperature Protection (OTP) ? RT6337A/B/C: Latched Mode OTP ? RT6337AH/BH/CH: Non-Latched Mode OTP
Junction Temperature Range: -40°C to 125°C
應(yīng)用 Application
? Laptop Computers
? Networking Systems
? Personal Video Recorders
? Distributed Power Systems
技術(shù)參數(shù)
- 制造商編號
：RT6337B
- 生產(chǎn)廠家
：Richtek
- Vin(min)(V)
：4.5
- Vin(max)(V)
：23
- Number of Outputs
：1
- Vout(min)(V)
：3.267
- Vout(max)(V)
：3.333
- Output Adj. Method
：Fixed
- Iout(max)(A)
：9
- Current Limit(typ)(A)
：13
- Freq(typ)(kHz)
：500
- Ext Sync
：No
- Ron_HS(typ)(mOhm)
：26
- Ron_LS(typ)(mOhm)
：14
- Iq(typ)(mA)
：0.095
- Features
：ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;OVP;PSM;Power Good;Stable with Ceramic Capacitor;UVP;Ultrasonic Mode Control
- Package Type
：UQFN3x3-23(FC)
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
RICHTEK |
2314+ |
QFN |
10 |
上傳都是百分之百進(jìn)口原裝現(xiàn)貨 |
詢價 | ||
RICHTEK |
23+ |
SOP8 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價 | ||
RICHTEK |
24+ |
SOP-8 |
8000 |
原廠原裝，價格優(yōu)勢，歡迎洽談！ |
詢價 | ||
RICHTEK |
24+ |
SOP-8 |
5000 |
全新原裝正品,現(xiàn)貨銷售 |
詢價 | ||
RICHTEK |
24+ |
SOP-8 |
11000 |
原裝正品 有掛有貨 假一賠十 |
詢價 | ||
RICHTEK/立锜 |
22+ |
SOP-8 |
5000 |
原裝正品 |
詢價 | ||
24+ |
N/A |
65000 |
一級代理-主營優(yōu)勢-實惠價格-不悔選擇 |
詢價 | |||
RICHTEK/立锜 |
25+ |
DFN |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
RICHTEK/立锜 |
21+ |
SOP |
15000 |
詢價 | |||
RICHTEK |
23+ |
SOP-8 |
20000 |
詢價 |
