RY8411 Description/描述:
RY8411設(shè)備是高效、同步降壓直流/直流調(diào)節(jié)器。它具有廣泛的輸入范圍,適用于廣泛的應(yīng)用,如來自不受調(diào)節(jié)的源的功率調(diào)節(jié)。它具有低RDSON (250mΩ/150mΩ典型)內(nèi)部開關(guān),以達(dá)到最大效率(92%典型)。支持PSM模式,工作頻率固定在800 kHz,允許使用小的外部組件,同時仍然能夠具有較低的輸出電壓紋波。通過OVP功能,集成電路可以抵抗高達(dá)42V的輸入電壓。RY8411支持1.2A的連續(xù)輸出電流,并具有0.8V的標(biāo)稱反饋電壓。
其他功能包括:熱關(guān)閉、VIN欠電壓鎖定,和柵極驅(qū)動欠電壓鎖定。RY8411有一個低調(diào)的SOT23-6封裝。
The RY8411 device is high-efficiency, synchronous step-down DC/DC regulators. With a wide input range, it is suitable for a wide range of applications, such as power conditioning from unregulated sources. It features a low RDSON (250m?/150m? typical) internal switch for maximum efficiency (92% typical). Supports PSM mode, the operating frequency is fixed at 800kHz, allowing the use of small external components while still being able to have low output voltage ripple. With OVP function, the IC can stand off input voltage as high as 42V. The RY8411 supports 1.2A continuous output current, and it has a 0.8V nominal feedback voltage.
Additional features include: thermal shutdown, VIN undervoltage lockout, and gate drive undervoltage lockout. The RY8411 is available in a low-profile SOT23-6 package.
RY8411 Features/特性:
Wide 4V to 38V Operating Input Range
Standoff Voltage: 42V
1.2A Continuous Output Current
800KHz Switching Frequency
Short Protection with Foldback-Mode
Built-in Over Current Limit
Built-in Over Voltage Protection
Support PSM Mode
Internal Soft-Start
250mΩ/150mΩ Low RDS(ON) Internal Power MOSFETs
Output Adjustable from 0.8V
No Schottky Diode Required
Integrated internal compensation
Thermal Shutdown
Available in SOT23-6 Package
-40°C to +85°C Temperature Range
RY8411 Applications/應(yīng)用:
Battery-Powered Equipment
Portable Media Players
Industrial Distributed Power Applications
Portable Hand-Held Instruments
RY8411 Typical Application Circuit:
RY8411 Pin Description:
RY8411 Order Information (1)
Marking
|
Part No.
|
Model
|
Description
|
Package
|
T/R Qty
|
HOYLL |
70301650 |
RY8411 |
RY8411 PSM SYN Buck, 4-38V, 1.2A, 800KHz, VFB 0.8V, SOT23-6 |
SOT23-6 |
3000PCS |
RY8411 Functional Block Diagram