RP117x Series 100 mA Low Noise, High Ripple Rejection, Negative-voltage LDO Regulator No. EA-379-181207 OVERVIEW The RP117x is a negative voltage LDO regulator that provides high ripple rejection and low output noise. Adding only one capacitor to each input and output pin can make a simple structure and high performance LDO regulator. KEY BENEFITS Provides high ripple rejection rate and low output noise, which is ideal for noise-sensitive devices. Requires only one capacitor for each input and output pin, and is available in small DFN(PLP)1212-6 and SC-88A packages, both of which can utilize the space on board. TYPICAL APPLICATIONS KEY SPECIFICATIONS Input Voltage Range: 10.0 V to 2.5 V CE 0 V to 6 V Output Voltage Range: 5.5 V to 1.0 V Output Current: 100 mA GND Supply Current: Typ. 75 A CE GND Ripple Rejection Rate: Typ. 80 dB, f = 1 kHz V C Output Noise: Typ. 16 Vrms IN C OUT IN 10 V to 2.5 V 2.2 F 1.0 F RP117x (VSET = 5.5 V to 2.0 V) Protection Features: Thermal Shutdown Protection VDD VOUT VOUT Short-circuit Protection Auto-discharge Function PACKAGE SELECTION GUIDE The set output voltage and the package type are user- selectable options. Product Name Package RP117Kxx1D-TR DFN(PLP)1212-6 RP117Qxx2D-TR-FE SC-88A SC-88A DFN(PLP)1212-6 (1) 2.0 x 2.1 x 0.9 (mm) 1.20 x 1.20 x 0.4 (mm) xx: Specify the set output voltage (VSET) within the range (1) maximum dimension of 5.5 V to 1.0 V in 0.1 V steps. APPLICATIONS Noise-sensitive Devices: Sensors, DACs, ADCs, Amplifiers Audio Devices, DSLRs Measuring Instruments Liquid Crystal Panels, Bias Power Supply for CCDs 1 RP117x No. EA-379-181207 SELECTION GUIDE (1) The RP117x includes an auto-discharge function . A set output voltage and a package type are user- selectable options. Selection Guide Product Name Package Quantity per Real Pb Free Halogen Free RP117Kxx1D-TR DFN(PLP)1212-6 5,000 pcs Yes Yes RP117Qxx2D-TR-FE SC-88A 3,000 pcs Yes Yes xx: Specify the set output voltage (V ) within the range of 5.5 V to 1.0 V in 0.1 V steps. SET The voltage in 0.05 V step is shown as follows: Ex. -1.35 V: RP117x13xx5 BLOCK DIAGRAM RP117x Block Diagram (1) Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor. 2