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UC3552 датащи(PDF) 1 Page - Unisonic Technologies |
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UC3552 датащи(HTML) 1 Page - Unisonic Technologies |
1 / 7 page UNISONIC TECHNOLOGIES CO., LTD UC3552 CMOS IC www.unisonic.com.tw 1 of 7 Copyright © 2013 Unisonic Technologies Co., Ltd QW-R502-134.B PWM DC-DC CONVERTER WITH INTERNAL SWITCH AND SOFT-START DESCRIPTION The UTC UC3552 is a step-up PWM DC-DC converter with a internal switch which is 1.6A, 0.23Ω. UTC UC3552 offers users flexibility in determining loop dynamics and adjusting operating frequency cause it’s equipped with an external compensation pin ,and it also allows the use of small, low equivalent resistance (ESR) ceramic output capacitors. UTC UC3552 is capable of converting a standard input of 3.3V to multiple outputs of 8V, − 8V , and 23V. Otherwise, filtering and loop performance are enhanced and facilitated by a high switching frequency of either 640 kHz or1.3MHz. As a power-smart design in shutdown mode a soft-start with an external capacitor that sets the input current ramp rate, reduces the current consumption to 0.1μA. A mere 2.6V input yields an impressive output voltage to 12V when operating. FEATURES * 1.6A, 0.23Ω, internal switch * High efficiency: 90% * Adjustable output: VDD to 12V * Adjustable frequency: 640kHz or 1.3MHz * Wide input range: +2.6V ~ +5.5V * Low shutdown current: 0.1μA * Programmable soft-start ORDERING INFORMATION Ordering Number Package Packing Lead Free Halogen Free UC3552L-S08-R UC3552G-S08-R SOP-8 Tape Reel UC3552L-S08-T UC3552G-S08-T SOP-8 Tube UC3552L-SM1-R UC3552G-SM1-R MSOP-8 Tape Reel UC3552L-SM1-T UC3552G-SM1-T MSOP-8 Tube |
Аналогичный номер детали - UC3552_15 |
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Аналогичное описание - UC3552_15 |
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