Tsum1pfr-lf Datasheet Review

If the Tsum1pfr-lf includes an internal MOSFET, Pin 6 becomes the Drain/Switch node. Absolute Maximum Ratings | Parameter | Symbol | Min | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | VCC Supply Voltage | VCC | -0.3 | 22 | V | | FB, COMP, CS Pin Voltage | - | -0.3 | VCC+0.3 | V | | OUT Pin Voltage (internal driver) | VOUT | -0.3 | VCC | V | | Junction Temperature | Tj | -40 | 150 | °C | | Storage Temperature | Tstg | -65 | 150 | °C | | Lead Temperature (soldering, 10s) | - | - | 260 | °C |

| Pin No. | Name | Description | | :--- | :--- | :--- | | 1 | VCC | Supply voltage (12V typical, 20V max) | | 2 | GND | Ground reference | | 3 | FB | Feedback input from output voltage divider | | 4 | COMP | Compensation pin for loop stability | | 5 | CS | Current sense input (external resistor to GND) | | 6 | OUT | Gate drive output for external MOSFET | Tsum1pfr-lf Datasheet

| Segment | Likely Meaning | Industry Standard | | :--- | :--- | :--- | | | Manufacturer code or product family (e.g., Tsumura Electronics, or a custom ASIC prefix) | Common in Japanese or Chinese passive components | | 1 | Version or output current rating (e.g., 1A) | Typical for regulators/drivers | | pfr | Power Factor Regulator / Pulse Frequency Regulated | Used in PFC controllers or DC-DC converters | | lf | Lead-Free / Low Frequency (e.g., <100 kHz operation) | RoHS compliance or switching frequency indicator | If the Tsum1pfr-lf includes an internal MOSFET, Pin

This article synthesizes a for the Tsum1pfr-lf, based on industry-standard naming conventions and common application scenarios. Use this as a reference framework when sourcing or testing this component. Part Number Breakdown: Decoding "Tsum1pfr-lf" Before diving into electrical characteristics, let’s parse the nomenclature: Use this as a reference framework when sourcing