RT6338E中文資料立锜科技數(shù)據(jù)手冊PDF規(guī)格書
RT6338E規(guī)格書詳情
General Description
The RT6338E/EH family are high efficiency
synchronous step-down DC-DC converters with pseudo
constant switching frequency 500kHz and deliver up to
8A output current. The RT6338E/EH operate from 4.5V
to 23V input voltage. The output voltage of
RT6338E/EH is fixed to 3.36V output voltage.
The RT6338E/EH 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,
RT6338E/EH 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, RT6338E/EH
provides the best light-load efficiency and improves the
acoustic noise with spread spectrum function.
RT6338E/EH provides PGOOD indicator for easy
system sequence control. Full protection features are
also integrated in the device, including the cycle-bycycle 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
? RT6338E/EH: 4.5V to 23V
? Output Voltage
? RT6338E/EH: 3.36V
? 8A 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 26m? (high-side)
and 14m? (low-side)
? LDO
? RT6338E/EH: 3.3V/100mA
? Overcurrent Limit
? RT6338E/EH: 12A
? Output Under-/Overvoltage Protection (UVP/OVP)
? RT6338E: Latched Mode UVP/OVP
? RT6338EH: Hiccup Mode UVP and Non-Latched
Mode OVP
? Input Undervoltage Lockout (UVLO)
? Over-Temperature Protection (OTP)
? RT6338E: Latched Mode OTP
? RT6338EH: Non-Latched Mode OTP
Applications
? Laptop Computers
? Tablet PCs
? Networking Systems
? Servers
? Personal Video Recorders
? Flat Panel Television and Monitors
? Distributed Power Systems
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
RICHTEK/立锜 |
21+ |
SOP |
15000 |
詢價 | |||
RICHTEK |
20+ |
QFN |
3000 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
RICHTEK |
23+ |
SOP-8 |
5000 |
正規(guī)渠道,只有原裝! |
詢價 | ||
RICHTEK |
23+ |
SOP-8 |
20000 |
詢價 | |||
RICHTEK |
24+ |
SOP-8 |
8000 |
原廠原裝，價格優(yōu)勢，歡迎洽談！ |
詢價 | ||
Richtek(立崎) |
23+ |
NA |
26094 |
10年以上分銷經(jīng)驗原裝進口正品,做服務型企業(yè) |
詢價 | ||
RICHTEK/立锜 |
25+ |
DFN |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
Richtek USA Inc. |
23+ |
10-WFDFN |
5000 |
特惠實單價格秒出原裝正品假一罰萬 |
詢價 | ||
RICHTEK |
24+ |
SOP-8 |
11000 |
原裝正品 有掛有貨 假一賠十 |
詢價 | ||
ANY |
新 |
5 |
全新原裝 貨期兩周 |
詢價 |
