Description
ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Ver 03 ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REG.
The ME2129 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, an error amplif.
Features
* ME2129Cxx ME2129F
M5 M5
SOT23-5 SOT23-5
Build in Transistor Build in Transistor
Yes Yes
No Yes
No Yes
LX + CE LX +FB
Pin Configurationÿ
SOT-23-5
Pin informationÿ
ME2129Cxx:
VÛ mw
* yÑ `R b€
Pin Number SOT-23-5 1
ww w. g ofot ec m h. co
Pin Name CE LX GND NC VOUT
Function Shutdown
Applications
* requiring high efficiency and high output current. The ME2129 series switches its operation to the PFM control circuit whose duty ratio is 15 % with to the PWM/PFM switching control circuit under a light load and to prevent decline in the efficiency by IC operation current. Selection Guideÿ
VÛ `R m