Low Noise 150mA LDO Regulator for Automotive Applications
The RP130x is a CMOS-based positive voltage regulator IC with high ripple rejection, low dropout voltage, high output voltage accuracy and extremely low supply current. The RP130x consists of a voltage reference unit, an error amplifier, a resistor network for voltage setting, a short current limit circuit, and a chip enable circuit.
The RP130x has low supply current characteristics in the CMOS process. In addition, the RP130x can supply a low dropout voltage, which becomes the smallest difference between the input voltage and output voltage by having a low on-resistance and also can achieve the battery's long life by a chip enable function.
When compared with the conventional products of high-speed type, the RP130x achieves low consumption current of 38µA (Typ.) while improving the input transient response, the load transient response, and the ripple rejection.
The RP130x supports two package types: SOT-23-5 and DFN1212-4. By the adoption of the ultra-compact DFN1212-4, the RP130x can achieve a higher density mounting than ever.
|Input Voltage Range (Max. Rating)||1.7V to 6.5V (7.0V)|
|Supply Current||Typ. 38µA|
|Supply Current (Standby Mode)||Typ. 0.1µA|
|Ripple Rejection||Typ. 80dB (f = 1kHz)|
|Output Voltage Range||1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 3.4V, and 5.0V
*Contact Ricoh sales representatives for other voltages.
|Output Voltage Accuracy||±1.0% (VSET > 2.0V, Ta = 25°C)|
|Temperature-Drift Coefficient of Output Voltage||Typ. ±20 ppm/°C|
|Dropout Voltage||Typ. 0.32V (IOUT = 150mA, VSET = 2.8V)|
|Line Regulation||Typ. 0.02%/V|
|Built-in Fold Back Protection Circuit||Typ. 40mA|
|Recommended Ceramic Capacitors||0.47µF or more|
|Output Noise Voltage||Typ. 20 x VSETµVrms
(BW = 10Hz to 100kHz, IOUT = 30mA)
- ・Power source for car accessories including car audio equipment, car navigation system, and ETC system.
|Data Sheet||Package||Quality Assurance Data||Suffix||Composition & Content*1|
|SOT-23-5||-AE||Sn (Sn: 100%)|
- *1The composition of the product cannot be specified.