Key facts
- Brand
- Ricoh
- Model
- R1213K
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-09
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RICOH R1213K Series PWM Step-Up DC/DC Converters Datasheet
The R1213K Series are CMOS-based, PVVM control low consumption current step-up DC/DC converter ICs. They are designed to create a low ripple, high efficiency step-up converter using only an inductor, a diode, divider resistors, and capacitors. The series includes two versions: Version A for output voltages of 3.0V to 6.0V, and Version B for 6.0V to 15.0V.
The IC incorporates several protection features, including a current limit circuit, a timer latch protection circuit, thermal shutdown, and an under-voltage lockout (UVLO) function. Operation halting by these protection circuits is connected to a FLAG output function, which can control an external P-channel MOSFET to cut off the current path. The device operates with a PWM low ripple oscillator frequency of 1.0MHz and supports a maximum duty cycle of typically 90%.
Ricoh R1213K specifications
| Input Voltage Range | 2.3V ~ 5.5V |
|---|---|
| Feedback Voltage | 0.8V |
| Switching Frequency | 1.0MHz |
| Maximum Duty Cycle | Typ. 90% |
| Thermal Shutdown Temperature | 150°C |
| Package Type | DFN(PLP)2730-12 |
| Lx Peak Current Limit | Typ. 3A |
Source: RICOH R1213K Series PWM Step-Up DC/DC Converters Datasheet
All Ricoh R1213K documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the feedback voltage for the R1213K?
The feedback voltage is 0.8V.
From: RICOH R1213K Series PWM Step-Up DC/DC Converters Datasheet
What are the recommended applications for this IC?
Recommended applications include Flash LED, Data card, bsc, and LCD source Bias Supplies.
From: RICOH R1213K Series PWM Step-Up DC/DC Converters Datasheet
What is the maximum output voltage range for the R1213K Series?
The output voltage can be adjusted externally from a minimum of -0.3V to a maximum of 15.0V.
What is the typical oscillator frequency for this converter?
The oscillator operates at a typical frequency of 1MHz.