Key facts
- Brand
- Ricoh
- Model
- RP400x
- Category
- DC/DC Converters
- Documents
- 3
- Languages
- EN
- Last added
- 2012-07-09
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Ricoh RP400xxx1B Series Step-Up DC/DC Converter Datasheet
The Ricoh RP400xxx1B Series consists of high efficiency, step-up DC/DC converter ICs packaged in compact Spin SOT23 or 6pin DFN(PLP). These converters support low voltage startup from one to two alkaline or nickel-metal-hydride batteries, or one-cell Lithium-ion batteries. The series includes both adjustable and fixed output voltage versions, with the adjustable version (RP400K001B) allowing output settings between 1.8V and 5.0V.
Read onlineRicoh RP400x specifications
| Start-up Voltage | Typ. 0.8V |
|---|---|
| Input Voltage Range | ~0.8V ~5.5V |
| Efficiency | Typ. 85% |
| Output Current | Typ. 200mA @ 3.3V |
| Internal Switch On-Resistance | Typ. 0.4 Ohm |
| PWM Oscillator Frequency | 700kHz |
| Output Voltage Range | 1.8V to 5.0V |
| Ambient Temperature Range | -40 to +85 °C |
Source: Ricoh RP400xxx1A Series Step-Up DC/DC Converter Datasheet
All Ricoh RP400x documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum start-up voltage?
The guaranteed start-up voltage is 0.7V.
From: Ricoh RP400xxx1B Series Step-Up DC/DC Converter Datasheet
Can the output voltage be adjusted?
Yes, the output voltage can be set within 1.8V to 5.0V using external divider resistors.
From: Ricoh RP400xxx1B Series Step-Up DC/DC Converter Datasheet
What is the minimum start-up voltage for this converter?
The guaranteed low start-up voltage is 0.8V.
From: Ricoh RP400xxx1A Series Step-Up DC/DC Converter Datasheet
Which battery types are supported by this series?
It supports one to two alkaline or NiMH batteries, and one-cell Lithium-ion (Li+) batteries.
From: Ricoh RP400xxx1A Series Step-Up DC/DC Converter Datasheet
What control modes does the RP400x series use?
The RP400x series uses current mode PWM or VFM-controlled step-up DC/DC conversion.
From: Ricoh RP400x Series Current Mode PWM/VFM Step-up DC/DC Converter Datasheet
Can ceramic output capacitors be used with this converter?
Yes, the RP400x allows for the use of ceramic output capacitors.
From: Ricoh RP400x Series Current Mode PWM/VFM Step-up DC/DC Converter Datasheet