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Without more context, I cannot provide a specific datasheet. However, I can help you identify the component if you supply the missing information.
The marking typically refers to the BD9E102FJ-GE2 ) synchronous buck converter manufactured by Rohm Semiconductor
. It is frequently found in laptop power delivery systems and is noted for its compatibility with parts like the MP1432DN-LF-Z Key Specifications: BD9E102FJ Based on the BD9E102FJ Datasheet , the primary performance characteristics include: Input Voltage Range : 7.0V to 26V (Some variants support 4.5V to 28V). Output Current : Maximum 1.0A. Adjustable Output Switching Frequency
: Typically 570 kHz (Variable ranges between 300 kHz to 1.2 MHz reported). : SOP-8 (8-pin surface mount). Efficiency Features : Integrated high-side MOSFET ( Common Applications
The IC is primarily used in consumer electronics for power management: Laptop Motherboards
: CPU VRM or main DC-in circuits for brands like Dell, HP, Lenovo, and ASUS. Storage Devices : Managing data storage and retrieval in SSDs. Embedded Systems
: Industrial and automotive applications requiring stable power regulation. Alternative Identification (ECCN) In a regulatory context, is also an Export Control Classification Number (ECCN)
The "9E102" technical datasheet refers primarily to a high-performance synchronous buck switching regulator, most commonly identified as the
manufactured by ROHM Semiconductor. This integrated circuit (IC) is a critical component in power management systems, designed to efficiently convert higher input voltages into stable, lower output voltages for sensitive electronic devices. Functional Overview and Architecture 9e102 datasheet
is built on a silicon monolithic integrated circuit structure. Its primary function is as a DC/DC converter, utilizing current mode control to provide high-speed transient response and easy phase compensation.
Synchronous Rectification: It features built-in power MOSFETs with low on-resistance (typically 250 mΩ for the high-side), which minimizes energy loss and eliminates the need for an external diode.
SLLM™ Technology: A standout feature of the ROHM BD9E102FJ is its Simple Light Load Mode (SLLM™), which maintains high efficiency (approximately 80% at 10mA) even during light-load or standby conditions. Key Technical Specifications
According to technical listings from retailers like UTSource and Mouser, the operates within the following parameters:
Input Voltage Range: Supports a broad range from 7.0V to 26V.
Output Capabilities: Delivers a maximum output current of 1.0A, with an adjustable output voltage range starting from 1.0V.
Switching Frequency: Operates at a typical frequency of 570 kHz.
Protection Mechanisms: Includes integrated safety features such as thermal shutdown, over-current protection, short circuit protection, and under-voltage lockout.
Package Type: Housed in a standard SOP-J8 or SOP-8 surface mount package. Applications and Industry Use Provide the following details in a reply, and
The 9E102 is a staple in the repair and manufacturing of modern consumer electronics. It is frequently used in laptop motherboard power delivery systems for brands like Dell, HP, Lenovo, and ASUS. In these environments, it often serves as a controller for CPU VRM (Voltage Regulator Module) or main DC-in circuits. Other applications include:
Home Appliances: Powering control boards in household devices.
Telecommunications: Serving as a secondary power supply in networking equipment.
Industrial Electronics: Providing stable power for communications and industrial control systems.
In summary, the 9E102 datasheet describes a versatile, efficient power management IC. Its ability to handle high input voltages while maintaining efficiency at low loads makes it an essential component for reducing standby power consumption in modern electronics. If you'd like, I can: Compare it to equivalent ICs like the MP1432 Provide a detailed pinout description for repair purposes
Help you find current stock and pricing from authorized distributors 9E102 SOP-8 | In Stock - utsource
If your 9E102 has 14 pins, it is likely a multi-tap delay line. Example pinout:
Always refer to the specific manufacturer’s datasheet for exact pin assignments.
Step 1 – Check the Component's Physical Marking Again Without more context, I cannot provide a specific datasheet
Step 2 – Search by Full Marking Try these variations in Google or Octopart:
Step 3 – Search by Function (if you know the component type)
Step 4 – Use SMD Codebooks
Step 5 – Upload a Clear Photo If you can, take a high-resolution photo of the component (showing the marking and any logo) and post it on:
| Tap Number | Delay (ns) | Tolerance (±) | |------------|------------|---------------| | Tap 1 (T1) | 20.4 | 2 ns or 5% | | Tap 2 (T2) | 40.8 | 2 ns or 5% | | Tap 3 (T3) | 61.2 | 2 ns or 5% | | Tap 4 (T4) | 81.6 | 2 ns or 5% | | Tap 5 (T5 / Output) | 102.0 | 2 ns or 5% |
Note: Actual tap increments depend on the specific 9E102 variant. Some provide equally spaced taps (e.g., every 20.4 ns), while others have a single output with 102 ns delay.
The 9E102 is ideal for applications requiring precise, repeatable time delays without complex clocking or microcontrollers.
| Parameter | Limit | |-----------|-------| | Operating Temperature | -55°C to +125°C | | Storage Temperature | -55°C to +125°C | | Soldering Temperature (Peak) | +260°C for 10 sec (max) | | Voltage (DC) | Do not exceed 50V (or 100V) | | Humidity | 85% RH at 85°C for 1000 hrs |
Warning: Exceeding voltage or temperature may cause catastrophic failure (cracking or shorting). X7R capacitors exhibit microphonic effects under mechanical stress.
The most common package for a 9E102 is an 8-pin DIP (Dual Inline Package). Below is a likely pin assignment.
| Parameter | Symbol | Min | Max | Unit | |-----------|--------|-----|-----|------| | Supply Voltage | Vcc | 0 | 7.0 | V | | Input Voltage | Vin | 0 | Vcc + 0.5 | V | | Output Current (per pin) | Iout | - | 25 | mA | | Operating Temperature | Topr | -40 | +85 | °C | | Storage Temperature | Tstg | -65 | +150 | °C | | Lead Temperature (soldering, 10s) | - | - | 260 | °C |