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 RP124 is a low supply current LDO regulator with a battery monitor (BM).
The battery monitor has a function which divides the input voltage (VIN) into 1/3 or 1/4. The battery charge remaining can be monitored by MCU. The buffering output enables directly inputting a signal into the low voltage A/D converter (ADC) with built-in MCU.
|LDO Section||Input Voltage Range (Maximum Rating)||1.7 V to 5.5 V (6.5 V)|
|Supply Current||Typ. 0.2 µA|
|Output Voltage Range||1.2 V / 1.5 V / 1.8 V / 2.1 V / 2.4 V / 2.5 V / 2.7 V / 2.8 V / 3.0 V / 3.1 V / 3.3 V / 3.6 V|
|Output Voltage Accuracy||±0.8%|
|Output Current||100 mA|
|Ceramic Capacitor Compatible||1.0 µF or more|
|BM Section||Output Voltage||VIN/3 (RP124xxx3x)
|Output Voltage Accuracy||±20 mV|
|Supply Current||Typ. 0.1 µA|
|Ceramic Capacitor Compatible||0.1 µF to 0.22 µF|
LDO Supply Current vs. Temperature
RP124x18xx, VIN = 2.8 V
BM Supply Current vs. Temperature
RP124xxx4x, VIN = 3.6 V
*) The tab is substrate level (GND). It is recommended that the tab be connected to the ground plane on the board, or otherwise be left floating.
The LDO set output voltage, the divided ratio of BM output voltage, the CE pin function and the auto-discharge function are user-selectable options.
|Product Name||Package||Quantity per Reel|
|B||Controlling LDO with the CE pin (Active-high)||LDO||No
|D||Controlling LDO with the CE pin (Active-high)||LDO||Yes|
|E||Controlling BM with the CE pin (Active-high)||LDO||No|
|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.