muRata MYRBP290080W21RD

The MYRBP-W/B series is a synchronous step-up mini DC/DC converter which integrates an inductor and a control IC in one tiny package (2.0mm x 2.5mm, h = 1.0mm). A stable step-up power supply is configured using only two capacitors connected externally. An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring. A wide operating voltage range of 0.65V to 6.0V enables support for applications that require an internally fixed output voltage (2.2V to 5.5V). PWM control (MYRBP-W) or automatic PWM/PFM switching control (MYRBP-B) can be selected. During the devices enter stand-by mode, MYRBP-WD/BD types prevent the application malfunction by CL Discharge Function which can quickly discharge the electric charge at the output capacitor (CL). MYRBP-W/B types is able to drive Real Time Clock etc.

• Input Voltage Range: operating hold voltage 0.65V ~ 6.0V, Start-up voltage 0.9V ~ 6.0V
• Fixed Output Voltage: 2.2V ~ 5.5V (0.1V increments)
• Oscillation Frequency: 3.0MHz (±20%)
• Input Current: 0.8A
• Output Current: 500mA @VOUT=5.0V, VBAT = 3.3V (TYP.), 350mA @VOUT = 3.3V, VBAT = 1.8V (TYP.)
• Control Mode Selection: PWM (MYRBP-W Series) or Auto PWM/PFM (MYRBP-B Series)
• Load Transient Response: 100mV @VOUT = 3.3V, VBAT = 1.8V, IOUT=1mA→200mA
• Protection Circuits: Over-current limit (Integral latch method), Output short-circuit protection
• Functions: Soft-start, Load Disconnection Function (D type), CL Auto Discharge Function (D type), Bypass Switch Function (E type)
• Output Capacitor: Ceramic Capacitor
• Operating Ambient Temperature: -40℃ ~ +85℃
• Environmentally Friendly: EU RoHS Compliant, Pb Free, Halogen Free

• Portable equipment
• Beauty & health equipment
• Wearable devices
• Game & Hobby
• PC Peripherals
• Devices with 1~3 Alkaline, 1~3 Nickel Hydride, 1 Lithium and 1 Li-ion