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- 2012-02-10
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Fortune Semiconductor FS8802 Step-up DC-DC Converter Datasheet
The FS8802 is a high‑efficiency boost regulator designed for portable devices powered by 1‑ to 4‑cell batteries. It operates from an input as low as 1 V, delivers up to 400 mA load current, and provides a selectable output voltage from 2.5 V to 6 V using two external resistors. The device includes an internal 2 A NMOS power switch, a low‑battery detector (0.86 V threshold), and a fixed 550 kHz switching frequency, all packaged in an 8‑lead SOP case.
Typical applications include digital cameras, MP3 players, PDAs, wireless equipment, and other single‑ or dual‑cell battery‑operated products. The datasheet details pin functions, absolute maximum ratings, electrical characteristics, layout recommendations, and component selection guidelines for inductors and capacitors to achieve optimal performance.
Covers: General Description · Features · Applications · Pin Configuration · Absolute Maximum Ratings · Electrical Characteristics
Latest Fo manuals
Fortune Semiconductor FS8802 Step-up DC-DC Converter Datasheet
Datasheet 9 pages · 366 KB · ENThe FS8802 is a compact high‑efficiency step‑up DC‑DC converter with 1 V start‑up, 90 % efficiency and built‑in low‑battery detection.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in Fo manuals
What is the minimum input voltage required to start the FS8802?
The device can start up with an input of 1.0 V when the load current is 1 mA.
From: Fortune Semiconductor FS8802 Step-up DC-DC Converter Datasheet
How is the output voltage set on the FS8802?
The output voltage is set by two external resistors forming a feedback divider; Vout = (R1/R2) × 1.25 V.
From: Fortune Semiconductor FS8802 Step-up DC-DC Converter Datasheet