数据搜索系统,热门电子元器件搜索 |
|
SM8172A 数据表(PDF) 2 Page - Nippon Precision Circuits Inc |
|
SM8172A 数据表(HTML) 2 Page - Nippon Precision Circuits Inc |
2 / 17 page SM8172A SEIKO NPC CORPORATION —2 6. PINOUT (Top view) 7. PIN DESCRIPTION 8. BLOCK DIAGRAM Number Name I/O Function 1 VIN2 – Supply voltage (series regulator, internal circuits)*1 *1. VIN1 and VIN2 should have the same voltage potential. 2 LDOUT O Series regulator output*2 *2. When the series regulator is not used, LDOUT pin should be open and not be connected to GND. 3 GND – Ground (internal circuits) 4 ENDCO Ip*3 *3. Ip = Input with pull-down resistor built-in Output enable (DC/DC converter) 5 ENLDO Ip*3 Output enable (series regulator) 6 PGND – Ground (DC/DC converter output circuit) 7 LX O DC/DC converter coil drive*4 *4. When the DC/DC converter is not used, LX pin should be open and not be connected to GND or the supply. 8 VIN1 – Supply voltage (DC/DC converter output circuit)*1 9 FB I DC/DC converter feedback connection*5 *5. When the DC/DC converter is not used, FB pin should be connected to GND. 10 RESETN O Reset signal output (active-LOW, open-drain output)*6 *6. When the reset signal is not used, RESETN pin should be connected to GND. 10 9 8 7 6 1 2 3 4 5 VIN2 LDOUT GND ENDCO ENLDO RESETN FB VIN1 LX PGND VIN2 RESETN Delay circuits Current protection ENDCO GND VIN2 detector Soft start Vref + − ERR LDOUT Thermal protection OSC Soft start Current protection ERR + − FB Current mode PWM control Output control VIN1 LX PGND RESETN output LDOUT output (3.3V) 3.3 µF 5.0V 10 µF 2.2 µH 10k Ω 4.7 µF DCOUT (1.0V) 10 µF 5.0V ENLDO 8pF 220k Ω 330k Ω |
类似零件编号 - SM8172A |
|
类似说明 - SM8172A |
|
|
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 |