Special Contents for Automotive Applications
The reason RICOH power management IC has been chosen for more than 20 years
Special Contents for IoT Devices
Ultra-low supply current / Low noise / Low electromotive force / Battery monitoring
Special Contents for Industrial Applications
Long term supply / Flexible quantity purchase / High quality and reliability
The RP400 Series are CMOS-based automatic switch PWM- or VFM-controlled step-up DC/DC converters. RP400 includes a soft start circuit. By simply using an inductor, a capacitor, a diode, and (resistors) as external components, a high-efficiency step-up DC/DC converter can be easily configured. Due to current mode PWM control, the RP400 provides a fast response and high efficiency. Ceramic output capacitors can be used.
The output voltage can be selected from the internally fixed or the externally adjustment. The RP400 has an anti-ringing switch that prevents inductor current from ringing in PWM discontinuous mode. RP400 switches automatically to VFM control in low output current, keeping high efficiency. In addition to SOT-23-5 package, a 1.8mm × 2.0mm square DFN(PLP)1820-6 package is also available.
|Input Voltage Range (Maximum Rating)||Max. 5.5 V (6.0 V)|
|Supply Current 1||Typ. 300 μA (VSET=3.0V, Switching)|
|Supply Current 2||Typ. 160 μA (No switching)|
|Standby Current||Typ. 0.15 μA (CE="L", only A or C Version)|
|Start-up Voltage||0.8 V (Ver.A), 0.7 V (Ver.B), 1.2 V (Ver.C)|
|Output Voltage Range||1.8 V to 5.0 V (Internally fixed) (xx1)
Externally adjustable (Feedback voltage : 0.6 V) (001)
|Output Voltage Accuracy||±2%|
|Oscillator Frequency||700 kHz|
|Oscillator Maximum Duty Cycle||Typ. 88%|
|Coil-current Limit Circuit||Current Limit Typ. 600 mA|
|Soft Start Time||Typ. 0.7 ms|
|Anti-ringing Switch||Internal EMI Suppression|
(Internally fixed output Voltage type)
(Externally adjustable output voltage type)
RP400x001A Efficiency vs. Output Current
|5||NC (xx1A/C)||NC (xx1B)|
|VFB (001A/C)||VFB (001B)|
*) The tab is substrate level (GND).
In the RP400 Series, Output Voltage, Type of Output Voltage, and package for the ICs can be selected at the user’s request.
|Product Name||Package||Quantity per Reel|
|Package *1||Marking||Reliability *2|
*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.