RT9040
RT9040 is DDR Termination Regulator manufactured by Richtek.
Description
The RT9040 is a sink/source tracking termination regulator. It is specifically designed for low-cost and low-external ponent count systems. The RT9040 possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 20μF of ceramic output capacitance. The RT9040 supports remote sensing functions and all features required to power the DDRI / DDRII / DDRIII and Low Power DDRIII VTT bus termination according to the JEDEC specification. In addition, the RT9040 provides an open drain PGOOD signal to monitor the output regulation and an EN signal that can be used to discharge VTT during S3 (suspend to RAM) for DDR applications .
The RT9040 is available in the thermal efficient WDFN10L 3x3 package.
Ordering Information
RT9040 (2) Pin 1 Orientation (2) : Quadrant 2, Follow EIA-481-D Package Type QW : WDFN-10L 3x3 (W-Type)
Lead Plating System G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with
Halogen Free and Pb free)
Note : Richtek products are :
Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020.
Suitable for use in Sn Pb or Pb-free soldering processes.
Features
- VIN Input Voltage Range : 1.1V to 3.5V
- VCNTL Input Voltage Range : 2.375V to 5.5V
- MLCC Stable
- PGOOD to Monitor Output Regulation
- ±10m A Reference (REFOUT)
- Meet DDRI, DDRII JEDEC Spec Supports DDRIII,
DDRIV, Low Power DDRIII VTT Application
- Soft Start Function UVLO and OCP
- UVLO and OCP Protection
- Thermal Shutdown
- Ro HS pliant and Halogen Free
Applications
- Notebook/Desktop/Server
- Tele/Data, GSM Base Station, LCD-TV/PDP-
TV, Copier/Printer, Set-Top Box
Pin Configuration
(TOP VIEW)
REFIN 1 VIN 2
VOUT 3
PGND 4 SENSE 5
10 VCNTL 9 PGOOD 8 GND
7 EN 11 6 REFOUT
WDFN-10L 3x3
Marking Information
RT9040GQW(2)
G4=YM DNN
G4= : Product Code YMDNN : Date Code
RT9040ZQW(2)...
