The SGM61021 is a high efficiency synchronous Buck DC/DC converter with 2A output current capability and adjustable output voltage. The input supply voltage is in the range of 2.5V to 5.5V. Using adaptive off-time peak current control, the efficiency of this device reaches 95%.
This device operates with a quasi-fixed 2MHz pulse width modulation (PWM) mode for moderate or heavy loads. But at light loads, pulse skip modulation is used for power-save mode (PSM). The PSM operating quiescent current is very low, typically 48μA, which is well suitable for battery-powered applications to prolong battery life. Despite such low quiescent current, the transient response to large load variations is excellent. The device shutdown current is less than 0.8μA.
The SGM61021 provides an adjustable output voltage by an external resistor divider. The device is capable for low dropout operation with 100% duty cycle. Additional features include an internal soft-start function to limit inrush current, over-current and thermal shutdown protections, an enable input (EN), input under-voltage lockout (UVLO) protection and a power good (PG) output.
The SGM61021 is available in Green SOT-563-6 and UTDFN-1.6×1.6-6CL packages.
- 2.5V to 5.5V Input Voltage Range
- Adjustable Output Voltage from 0.6V to VIN
- Up to 95% Efficiency
- Low RDSON Switches (90mΩ/62mΩ)
- SGM61021A: Power-Save Mode
- SGM61021B: Forced PWM Mode
- SGM61021PA: Power-Save Mode and PG Pin
- SGM61021PB: Forced PWM Mode and PG Pin
- 48μA (TYP) Operating Quiescent Current
- 100% Duty Cycle for Low Dropout Operation
- 2MHz PWM Switching Frequency
- Support 1.2V GPIO
- Active Output Discharge
- Over-Current Protection
- Thermal Shutdown Protection
- Input Under-Voltage Lockout (UVLO) Protection
- Available in Green SOT-563-6 and UTDFN-1.6×1.6-6CL Packages
Smart Phone
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Wireless Router
Hard Disk Driver
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM61021AXKB6G/TR | Active | SOT-563-6 | 6 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | |||
SGM61021AXUIE6G/TR | Active | UTDFN-1.6×1.6-6CL | 6 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | |||
SGM61021BXKB6G/TR | Active | SOT-563-6 | 6 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | |||
SGM61021PAXKB6G/TR | Active | SOT-563-6 | 6 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | |||
SGM61021PAXUIE6G/TR | Active | UTDFN-1.6×1.6-6CL | 6 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | |||
SGM61021PBXKB6G/TR | Active | SOT-563-6 | 6 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
