The SGM41603B is an efficient 2:1/1:2 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 Buck charger output and saves the existing 1S power architecture that is powered from the same battery.
This 2-channel high switching frequency (MAX 1.5MHz) 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 99.3% efficiency which is among the highest in its class. Thermal management of such a low loss device is simple that 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 SGM41603B is available in a tiny WLCSP-2.85×2.59-42B-A package.
- Bidirectional Switched Capacitor Converter
- Forward Direction 2:1 Conversion, Reverse Direction 1:2 Conversion
- 2-Channel Interleaved Operation (90° or 180°)
- 8 Integrated N-Type MOSFET Switches
- 10A Output Current Capability
- 99.3% Peak Efficiency
- Low IQ Current: 50μA Forward Operating
- 11μA V2X Consumption Current in Ship Mode
- Support System Reset and Ship Mode
- 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-A 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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM41603BYG/TR | Active | WLCSP-2.85×2.59-42B-A | 42 | YES | YES | YES | YES | -40℃ to +85℃ | 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.
