FEATURES
• Operating Voltage (Maximum Rating) ·················· 3.6 V to 34 V (36 V)
• Consumption Current ····································· Typ. 18 μA (VIN = 12 V)
• Stand-by Current ············································ Typ. 0 μA (VIN = 34 V, CE = 0 V)
• Output Voltage ··············································· Externally-adjustable at 0.8 V or more
(Max. step down ratio 160 ns  fosc)
• Feedback Voltage and Tolerance ······················· 0.8 V1.0%
• Output Current ··············································· 3 A(1)
• Operating Frequency ······································· 300 kHz to 2.4 MHz settable by External resistor
• Minimum Off Time ·········································· Typ. 120 ns
• Maximum Duty ··············································· Min. 93% (fosc = 300 kHz), Min. 67% (fosc = 2400 kHz)
• UVLO Function Detection Voltage ······················ Typ. 2.6 V
• OVLO Function Detection Voltage ···················· Min. 38 V
• Soft-start Time ··············································· Internal soft-start time (Typ. 0.4 ms), as a lower limit,
Externally-adjustable by using capacitor
• High-side Switch Current Limit ·························· Typ. 4.5 A, as a upper limit,
Externally-adjustable by using resistor
• Thermal Shutdown Function ····························· Typ. 160C
• CE Threshold Voltage ······································ Typ. 1.0 V
• Latch Protection Delay Time ····························· Typ. 2 ms (R1270S001A)
• Fold-back Protection ······································· Fold-back for Oscillation frequency
• VFB Voltage Temperature Tolerance (ΔVFB/ΔTa)· ···· Typ. ±100 ppm/°C (−40°C ≤ Ta ≤ 105°C)
• Packages ····················································· HSOP-18