National Semiconductor LM3670MFX-1.875/NOPB Current - Output: 350mA Frequency - Switching: 1MHz Internal Switch(s): Yes Mounting Type: Surface Mount Number Of Outputs: 1 Operating Temperature: -40?°C ~ 85?°C Package / Case: SOT-23-5, SC-74A, SOT-25 Power - Output: - Series: PowerWise?® Synchronous Rectifier: No Type: Step-Down (Buck) Voltage - Input: 2.5 ~ 5.5 V Voltage - Output: 1.88V Other Names: LM3670MFX-1.875