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9e102 Datasheet Patched
ceramic bypass capacitor as close as humanly possible between Pin 2 ( VINcap V sub cap I cap N end-sub
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Note: Refer to the specific mechanical drawing for the exact tolerance stack-up. 9e102 datasheet
The 9E102 functions as a highly integrated synchronous step-down converter, which means it significantly reduces the need for external component counts. Unlike non-synchronous buck regulators, it integrates both the high-side and low-side power switches, minimizing power loss and eliminating the requirement for an external catch diode.
The specific you are experiencing if this is a motherboard repair job.
| Parameter | Generic 9E102 SOP-8 | ROHM BD9E102FJ-E2 | | :--- | :--- | :--- | | | General-purpose low-voltage IC | Synchronous Buck DC-DC Converter | | Input Voltage (VIN) | 2.7V to 5.5V | 7.0V to 26V (Max) | | Output Current (IOUT) | Not specified | 1.0A (Max) | | Switching Frequency | Not applicable | 570kHz (Typical) | | Package Type | SOP-8 | SOP-J8 (ROHM proprietary) | | Operating Temp | -40°C to +85°C | -40°C to +85°C | ceramic bypass capacitor as close as humanly possible
Compatible with standard aqueous or solvent cleaning processes. 5. Equivalent Parts and Alternatives
is a current-mode control DC/DC converter, allowing for high-speed transient response and simple loop compensation. It operates efficiently under light-load conditions due to ROHM's proprietary SLLM™ (Seamless Light Load Mode) technology.
Switching Node. Output terminal of the internal power switches. Connect directly to the output power inductor and bootstrap capacitor. Standard Application Circuit and Math The specific you are experiencing if this is
12V/24V to 5V step-down conversion. 6. Where to Find the Complete 9E102 Datasheet
Feedback Voltage Node. The feedback threshold regulates output voltage. Connect to the center tap of an external resistor divider hooked between the output rail ( VOUTcap V sub cap O cap U cap T end-sub ) and AGND.
(Note: Specific variants may differ based on batch codes. Verify exact suffix with supplier.)
The loop bandwidth is typically optimized around 22.4 kHz to manage load fluctuations efficiently. 5. Pin Configuration and Functions