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RT7240 Datasheet(PDF) 7 Page - Richtek Technology Corporation |
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RT7240 Datasheet(HTML) 7 Page - Richtek Technology Corporation |
7 / 18 page RT7235/36/39/40 7 DS7235/36/39/40-00 March 2013 www.richtek.com © Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Typical Application Circuit * : VCC pin for TSSOP-14 (Exposed Pad) only. VS pin for TSSOP-14 (Exposed Pad) only. GND pin for TSSOP-14 (Exposed Pad) only. PGOOD pin for TSSOP-14 (Exposed Pad) and WDFN-10L 3x3 only. RT7235/36/39/40 FB VCC* VIN 10µF x 2 C1 0.1µF C2 BOOT L1 1.4µH 0.1µF C6 22µF x 2 C7 SW SS 3.9nF C5 1µF C4 VOUT 1.05V/5A 22k R2 C3 VIN VS* 8.25k R1 EN GND* PGND R3 100k Input Signal PGOOD* VREG5 Power GOOD Table 1. Suggested Component Values (VIN = 12V) VOUT (V) R1 (k Ω) R2 (k Ω) C3 (pF) L1 ( μH) C7 ( μF) 1 6.81 22.1 -- 1.4 22 to 68 1.05 8.25 22.1 -- 1.4 22 to 68 1.2 12.7 22.1 -- 1.4 22 to 68 1.8 30.1 22.1 5 to 22 2 22 to 68 2.5 49.9 22.1 5 to 22 2 22 to 68 3.3 73.2 22.1 5 to 22 2 22 to 68 5 124 22.1 5 to 22 3.3 22 to 68 7 180 22.1 5 to 22 3.3 22 to 68 |
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