Ricoh Europe (Netherlands) B.V. Semiconductor Support Centre has launched the RP118, a 100mA, ultra-low consumption low-dropout (LDO) regulator in smallest possible packages for the IoT market and portable devices. Benefiting in particular from a current consumption of just 0.2µA at no-load and a standby current of 000.2µA are those applications that are mainly in sleep mode and resume for a periodical brief moment to perform a task. The ultra-low current consumption of the RP118 extends the battery lifetime of wireless devices with RF transmitters (BLE, Zigbee, WiSun, Ant), low power CPUs, sensors and energy harvesting circuits.
The RP118 is a special kind of LDO offering three operating modes:
- Low power consumption mode
- Fast transient response mode
- Off mode
The device switches automatically between low power consumption mode and fast transient response mode, based on the output current demand of the application. The off mode can be achieved by controlling the Chip Enable pin. The performance of the LDO is enhanced in fast transient response mode. In particular the ripple rejection as well as the response speed to line and load transients demonstrate better results than a conventional low current consumption LDO (refer to the datasheet for specific details). This means the RP118 contributes to optimised output voltage stability and ripple reduction.
The RP118 features a fold back current limit circuit. When a short circuit occurs, this circuit decreases the output current to 50mA, protecting the LDO and other electronic parts from possible damage. Optional is an auto-discharge function that enables a fast discharge of the output capacitor when the LDO is switched off.
The RP118 is available in three packages, including a SOT-23-5, DFN(PLP)1010-4 and ultra-small 0.64 x 0.64mm WLCSP-4-P8 package.
RP118 Features:
Input Voltage: 1.7V to 5.5V
Output Voltage: 1.2V to 3.6V
Output Voltage Accuracy: ±1.0%
Dropout Voltage: (Iout=100mA, 2.8V type) Typ. 0.1V
Output Current: Min. 100mA
Supply Current: (Iout=0mA) Typ. 0.2µA
Standby Current: Typ. 0.002µA
Protection Circuit: Fold Back Current Limit
Short Circuit Current Limit: Typ. 50mA
Output Capacitor: Ceramic, Min 0.1µF
RP118N: (L2.9 x W2.8 x H1.1mm) SOT-23-5
RP118K: (L1.0 x W1.0 x H0.6mm) DFN(PLP)1010-4
RP118Z: (L0.64 x W0.64 x H0.36mm) WLCSP-4-P8
Datasheet: http://www.e-devices.ricoh.co.jp/en/products/power/vr_ldo/rp118/
For further information, please contact:
Ricoh Europe (Netherlands) B.V.
Semiconductor Support Centre
Hans Adams, Manager
Tel: +31 (0) 20 5474 309
URL: http://www.e-devices.ricoh.co.jp/en
E-mail: semicon@ricoh-europe.com
