The SGM66051 is an internally compensated, 1.1MHz switching frequency, current mode, synchronous step- up switching regulator, which is capable of generating 5V output at 1A load current from a 3.3V rail.
This device turns into power-saving mode to maintain high efficiency by lowering switching frequency. With its anti-ringing circuitry damping the charge in parasitic capacitor, it reduces EMI interference significantly. Its output is disconnected by the rectifier circuit during shutdown, with no input to output leakage.
The SGM66051-5.1 and SGM66051-5.4 are preset for outputting 5.1V and 5.4V, while the SGM66051-ADJ is output voltage programmable with an external resistor divider.
The device is available in a Green TSOT-23-6 package and operates over an ambient temperature range of -40℃ to +85℃.
90% Efficient Synchronous Boost Converter
Device Quiescent Current: 20μA (TYP)
Less than 1μA Shutdown Current
Operating Input Voltage Range: 2.2V to 4.5V
Fixed Output Voltages: 5.1V and 5.4V
Output Voltage Clamping: 6V
Adjustable Output Voltage Up to 5.5V
Power-Save Mode for Improved Efficiency at Low Output Power
Load Disconnect During Shutdown
Low Reverse Leakage Current when VOUT > VIN
Over-Temperature Protection
Available in a Green TSOT-23-6 Package
-40℃ to +85℃ Operating Temperature Range
Single-Cell Li-Ion Powered Products
Portable Audio Players
Cellular Phones
Personal Medical Products
| Part Number | Status | Package | Pins | Pb-Free | Temp Range |
| SGM66051-ADJYTN6G/TR | Production | TSOT-23-6 | 6 | Y | -40℃ to +85℃ |
| SGM66051-5.4YTN6G/TR | Production | TSOT-23-6 | 6 | Y | -40℃ to +85℃ |
| SGM66051-5.1YTN6G/TR | Production | TSOT-23-6 | 6 | Y | -40℃ to +85℃ |
