| Control Interface |
GPIO |
| Current Limit (Typ) (A) |
1.4 |
| Load Current (Max) (A) |
0.5 |
| Vout (Min) (V) |
2.5 |
| Vout (Max) (V) |
5.5 |
| Output Type |
Adjustable |
| Temperature |
-40℃~85℃ |
| Special Function |
PWM Mode
PFM Mode
PSM Mode
Down Mode
Bypass Mode |
| Package (mm) |
DFN 2X2-8L |
•Ultra Low Quiescent Current:
•IQ into VIN Pin: 200nA
•IQ into VOUT Pin: 800nA
•Operating Input Voltage Range: 0.9V~5.2V
•Adjustable Output Voltage from 2.5V~5.5V
•ILoad≥0.5A at VOUT=5V, VIN≥3V
•Operation Mode: Boost Mode, Down Mode, Pass-through Mode
•True Cutoff VIN to VOUT path During Shutdown
•Up to 93% Efficiency at 10mA~300mA Current Load
•Up to 80% Efficiency at 100μA Current Load for AW3606B
•Build-in OVP, OTP, UVLO Protection
•DFN 2mm x 2mm x 0.55mm-8L Package
The AW3606A/AW3606B is a high efficiency synchronous step-up converter with ultra-low quiescent current down to 1μA, it is optimized for battery-powered applications, such as alkaline battery, coin-cell battery, Li-ion in Li-Polymer battery, that requires long battery life and tiny solution size.
The AW3606A/AW3606B uses a hysteretic current mode control scheme with typical 1.4A peak switch current limit when VOUT voltage exceed 2.5V. It consumes 1μA quiescent current under light load condition and can achieve up to 80% efficiency at 100μA load with AW3606B. It supports up to 500mA output current when input voltage is above 3V, and achieve up to 93% efficiency at 200mA load.
The AW3606A/AW3606B operates in down mode and pass-through mode when input voltage is close to in higher than output voltage. In the down mode, the AW3606A/AW3606B will continue to regulate the output voltage even when the input voltage exceeds the output voltage. When VIN > VOUT + 0.37V, It enters pass-through mode and the device stops switching. The rectifying PMOS constantly turns on and low-side switch constantly turns off.
The AW3606A/AW3606B build-in true shutdown function when it is disabled, which isolates the load from the input to reduce the current consumption. Also, the AW3606A/AW3606B integrates OVP, OTP, UVLO protections.
The AW3606A has adjustable output voltage. The AW3606B has a 5V fixed output voltage. The AW3606A/AW3606B is available in a tiny DFN 8pin package.
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