数据搜索系统,热门电子元器件搜索 |
|
LM27342-Q1 数据表(PDF) 2 Page - Texas Instruments |
|
|
LM27342-Q1 数据表(HTML) 2 Page - Texas Instruments |
2 / 44 page 2 3 4 7 9 8 PVIN SW EN DAP AVIN GND BOOST 6 10 1 5 SYNC FB SW PVIN 1 2 3 4 SW BOOST GND AVIN PVIN PVIN 5 FB EN SYNC SW 6 7 8 9 10 DAP LM27341/2 VIN PVIN EN BOOST SW FB GND / DAP VOUT C2 L1 C1 C3 R1 R2 D1 SYNC AVIN CLK ON OFF LM27341, LM27342, LM27341-Q1, LM27342-Q1 SNVS497E – NOVEMBER 2008 – REVISED APRIL 2013 www.ti.com Typical Application Circuit Figure 1. Figure 2. Efficiency vs Load Current VOUT = 5V, fsw = 2 MHz Connection Diagram Figure 3. 10-Lead SON (Top View) Figure 4. 10-Lead MSOP-PowerPad (Top View) See DSC0010A Package See DGQ0010A Package PIN DESCRIPTIONS Pin Name Function 1, 2 SW Output switch. Connects to the inductor, catch diode, and bootstrap capacitor. 3 BOOST Boost voltage that drives the internal NMOS control switch. A bootstrap capacitor is connected between the BOOST and SW pins. 4 EN Enable control input. Logic high enables operation. Do not allow this pin to float or be greater than VIN + 0.3V. 5 SYNC Frequency synchronization input. Drive this pin with an external clock or pulse train. Ground it to use the internal clock. 6 FB Feedback pin. Connect FB to the external resistor divider to set output voltage. 7 GND Signal and Power Ground pin. Place the bottom resistor of the feedback network as close as possible to this pin for accurate regulation. 8 AVIN Supply voltage for the control circuitry. 9, 10 PVIN Supply voltage for output power stage. Connect a bypass capacitor to this pin. DAP GND Signal / Power Ground and thermal connection. Tie this directly to GND (pin 7). See Application Information regarding optimum thermal layout. 2 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LM27341 LM27342 LM27341-Q1 LM27342-Q1 |
类似零件编号 - LM27342-Q1 |
|
类似说明 - LM27342-Q1 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 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 |