R1155x Series 150 mA 24 V Input High Voltage Regulator NO.EA-270-200219 OUTLINE The R1155x is a CMOS-based 24 V input voltage regulator featuring 150 mA output that provides high output voltage accuracy and low supply current. Internally, the R1155x consists of a voltage reference unit, an error amplifier, and a resistor net for setting output voltage. As protection circuits, the R1155x contains a current limit circuit, a fold-back protection circuit, a thermal shutdown circuit and a reverse current protection circuit. The R1155x is available in the fixed output voltage type (R1155xxxxB), and the adjustable output voltage type (R1155x001C). The output voltage accuracy for the fixed output voltage type is as high as 2.0%. The R1155x is offered in a 5-pin SOT-89-5 package and a 5-pin SOT-23-5 package. FEATURES Supply Current Typ. 7.5 A (VIN = 6.0 V or 3.0 V) Standby Current Typ. 0.1 A Output Current Min. 150 mA (VIN = 6.0 V or 3.0 V) Output Voltage Accuracy 2.0% Package SOT-23-5, SOT-89-5 Input Voltage Range Max. 24.0 V Output Voltage Range Fixed Output Voltage Type: 2.5 V to 12.0 V Adjustable Output Voltage Type: 2.5 V, 2.5 V to 23.0 V using external resistor Fold-back Protection Circuit Typ. 30 mA Thermal Shutdown Circuit Reverse Current Protection Circuit Ceramic Capacitor Capable COUT = 4.7 F or more APPLICATIONS Power source for home appliances (refrigerators, rice cookers, electric water warmers, etc.) Power source for in-car audio systems, in-car navigation systems, ETC systems, and reset circuits Power source for laptop personal computers, digital TVs, cordless phones, and private LAN systems for home, and reset circuits Power source for copiers, printers, facsimiles, scanners, and reset circuits 1 R1155x NO.EA-270-200219 SELECTION GUIDE The output voltage, the output voltage type, and the package type for the ICs are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R1155Nxxx-TR-FE SOT-23-5 3,000 pcs Yes Yes R1155Hxxx-T1-FE SOT-89-5 1,000 pcs Yes Yes xxx: Designation of the output voltage (V ) SET For Fixed Output Voltage Type: 2.5 V (025) to 12 V (120) in 0.1 V steps For Adjustable Output Voltage Type: 2.5 V (001) only : Designation of the output voltage type (B) Fixed Output Voltage Type (C) Adjustable Output Voltage Type BLOCK DIAGRAMS Reverse Current Reverse Current Protection Protection VDD VDD VOUT VOUT Voltage Voltage Reference Reference VFB On/Off On/Off Control Control Thermal Current Thermal Current Shutdown Limit Shutdown Limit VCE GND VCE GND R1155xxxxB Block Diagram R1155x001C Block Diagram (Fixed Output Voltage Type) (Adjustable Output Voltage Type) 2