The SGM41603 is an efficient 2:1 bidirectional switched-capacitor converter with integrated power switches. It can deliver 10A in forward direction (2:1 voltage divider) and 5A in the reverse direction (1:2 voltage doubler). This device allows using a 2S Li+ power source as a 1S Li+ solution by inserting it between the 2S battery pack and charger output, and saves the existing 1S power architecture that is powered from the same battery.
This 2-phase high switching frequency (1.5MHz, MAX) and inductor-less topology allow low profile design with small footprint. The high switching frequency also reduces the size and quantity of the required capacitors. Safe operation is assured by over-voltage, under-voltage, over-current and thermal protections. Interference is also minimized by the built-in frequency dithering option. This device can achieve 98.5% efficiency which is the highest in its class. Thermal management of such a low loss device is simple, which makes it an ideal choice for industrial, consumer, and medical applications.
The I2C interface allows flexible parameter settings including OCP, OVLO, switching frequency thresholds and soft-start currents and durations. The SGM41603 is available in a Green WLCSP-2.85×2.59-42B package.
Bidirectional Switched Capacitor Converter
Forward Direction 2:1 Conversion, Reverse Direction 1:2 Conversion
2-Phase Interleaved Operation (90° or 180°)
8 Integrated N-Type MOSFET Switches
10A Output Current Capability
98.5% Peak Efficiency
Low IQ Current: 59μA Forward Operating
6.7μA Shutdown Current
I2C Interface with Interrupt Signaling
Adjustable Soft-Start Current and Timeout
0.25MHz to 1.5MHz Adjustable Switching Frequency
Low EMI with Switching Frequency Dithering
Enable Input
Out-of-Audio Option at Light Load
Power Good Output
Programmable V1X & V2X Over-Voltage Lockout
Separate OCP Adjustment for Each Direction
Thermal Alarm and Protection
Available in a Green WLCSP-2.85×2.59-42B Package
Smartphones, Tablets, Ultrabooks
Chromebooks, DSLR and Mirrorless Cameras
Power Banks, 2S Li+ Battery Applications
Smartphone Direct Charging, Portable Printers
Portable Gaming Devices, Two-Way Radios
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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM41603YG/TR | Active | WLCSP-2.85×2.59-42B | 42 | Yes | Yes | Yes | Yes | MSL1 | -40℃ to +85℃ | View | View | 1-24 units : $3.5/unit 25-99 units : $3/unit 100-249 units : $2.5/unit 250-499 units : $2/unit 500-999 units : $1.75/unit 1000-9999 units : $1.3/unit | 3K-9K : 14 days 10K-99K : 28 days 100K-999K : 70 days 1000K and above : 91 days |
* 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.
