データシートサーチシステム |
|
LM3477 データシート(PDF) 2 Page - Texas Instruments |
|
LM3477 データシート(HTML) 2 Page - Texas Instruments |
2 / 34 page ISEN FB GND VIN CB SW DR LM3477 COMP/SD CBYP 0.1PF CBOOT 0.1PF CSN 0.1PF DR FB CB SW GND VIN ISEN LM3477 *RFB1 = RFB2 * (Vout - 1.26)/1.26 1 2 3 4 5 6 7 8 VIN 4.5V - 5.5V CIN 120PF/20V RSN 0.02: Q1 FDC653N D 30BG100 L 3.3PH VOUT 2.5V, 3A RFB1 20.5k RFB2 20.0k RC 510 CC1 47nF COUT 47PF ceramic COMP/SD LM3477 SNVS141J – MAY 2004 – REVISED JULY 2004 www.ti.com Typical Application Circuit Figure 1. Typical High Efficiency Step-Down (Buck) Converter Connection Diagram Figure 2. 8 Lead Mini SO8 Package (MSOP-8 Package) Pin Functions Pin Description Pin Name Pin Number Description ISEN 1 Current sense input pin. Voltage generated across an external sense resistor is fed into this pin. COMP/SD 2 Compensation pin. A resistor-capacitor combination connected to this pin provides compensation for the control loop. Pull this pin below 0.65V to shutdown. FB 3 Feedback pin. The output voltage should be adjusted using a resistor divider to provide 1.270V at this pin. GND 4 Ground pin. SW 5 Switch Node. Source of the external MOSFET is connected to this node. DR 6 Drive pin. The gate of the external MOSFET should be connected to this pin. CB 7 Boot-strap pin. A capacitor must be connected between this pin and SW pin (pin 5) for proper operation. The voltage developed across this capacitor provides the gate drive for the external MOSFET. VIN 8 Power Supply Input pin. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 2 Submit Documentation Feedback Copyright © 2004, Texas Instruments Incorporated Product Folder Links: LM3477 |
同様の部品番号 - LM3477_14 |
|
同様の説明 - LM3477_14 |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |