LM3686中文资料具有集成后置线性稳压器系统和低噪声线性稳压器的降压直流/直流转换器数据手册TI规格书

厂商型号 |
LM3686 |
参数属性 | LM3686 封装/外壳为12-WFBGA,DSBGA;包装为卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带;类别为集成电路(IC)的稳压器-线性+开关;产品描述:IC REG TRPL BUCK/LNR SYNC 12USMD |
功能描述 | 具有集成后置线性稳压器系统和低噪声线性稳压器的降压直流/直流转换器 |
封装外壳 | 12-WFBGA,DSBGA |
制造商 | TI Texas Instruments |
中文名称 | 德州仪器 美国德州仪器公司 |
数据手册 | |
更新时间 | 2025-9-23 15:41:00 |
人工找货 | LM3686价格和库存,欢迎联系客服免费人工找货 |
LM3686规格书详情
描述 Description
The LM3686 is a step-down DC-DC converter with a very low-dropout linear regulator and a low-noise linear regulator optimized for powering ultra-low voltage circuits. It provides three outputs with combined load current up to 900 mA over an input voltage range from 2.7 V to 5.5 V.The device offers superior features and performance for many applications. Automatic intelligent switching between PWM low-noise and PFM low-current mode offers improved system control. During full-power operation, a fixed-frequency 3 MHz (typical), PWM mode drives loads from approximately 70 mA to 600 mA maximum. Hysteretic PFM mode extends the battery life through reduction of the quiescent current to 28 μA (typical) at light load and system standby. Internal synchronous rectification provides high efficiency. For all available packages, see the orderable addendum at the end of the data sheet. All trademarks are the property of their respective owners.Three enable (EN_x) pins allow the separate operation of either the DC-DC, post-regulation linear regulator, or the linear regulator alone. If the DC-DC is not enabled during start-up of the post-regulation linear regulator, a parallel small-pass transistor supplies the linear regulator from VBATT with maximal 50 mA. In the combined operation where both enables are raised together, the small-pass transistor is deactivated and the big pass transistor provides 350 mA output current. In shutdown mode (EN_x pins pulled low), the device turns off and reduces battery consumption to 2.5 μA (typical). The LM3686 is available in a 12-pin DSBGA package. A high-switching frequency of 3 MHz (typical) allows the use of a few tiny surface-mount components. Only six external surface-mount components, an inductor and five ceramic capacitors, are required to establish a 15.66 mm2 total solution size.
特性 Features
• DC-DC Regulator
• 600-mA Maximum ILOAD
• Automatic PFM/PWM Mode Switching
• Internal Soft Start
• Dual-Rail Linear Regulator: LILO
• 70-µA Typical IQ and 300-mA Maximum ILOAD
• Linear Regulator: LDO
• 50-µA Typical IQ and 350-mA Maximum ILOAD
• Combined Global Features
• Operates From a Single Li-Ion Cell or 3-Cell NiMH/NiCd Batteries
• 100-µA IQ and 900-mA Maximum ILOAD
技术参数
- 制造商编号
:LM3686
- 生产厂家
:TI
- Vin (Min) (V)
:2.7
- Vin (Max) (V)
:5.5
- Iout (Max) (A)
:0.9
- Rating
:Catalog
- Step-down DC/DC controller
:0
- Step-down DC/DC converter
:1
- Step-up DC/DC controller
:0
- Step-up DC/DC converter
:0
- LDO
:2
- Iq (Typ) (mA)
:0.07
- Features
:—
- Operating temperature range (C)
:-30 to 85
- Processor name
:Generic
- Processor supplier
:Generic
- Shutdown current (ISD) (Typ) (uA)
:2.5
- Configurability
:Factory programmable
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
23+ |
SMD |
8560 |
受权代理!全新原装现货特价热卖! |
询价 | ||
TI/德州仪器 |
25+ |
DSBGA-12 |
860000 |
明嘉莱只做原装正品现货 |
询价 | ||
NS |
09+ |
MICROSMD |
3000 |
原装现货海量库存欢迎咨询 |
询价 | ||
NATIONALSEMICONDUCTOR |
21+ |
NA |
12820 |
只做原装,质量保证 |
询价 | ||
TI/德州仪器 |
22+ |
SMD |
10072 |
原装正品 |
询价 | ||
TI/德州仪器 |
24+ |
BGA |
46220 |
只做全新原装进口现货 |
询价 | ||
NS |
24+ |
MICROSMD |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
TI/德州仪器 |
23+ |
12-SMD |
3678 |
原装正品代理渠道价格优势 |
询价 | ||
TI(德州仪器) |
18+ |
9800 |
代理进口原装/实单价格可谈 |
询价 | |||
TI |
24+ |
DSBGA|12 |
798400 |
免费送样原盒原包现货一手渠道联系 |
询价 |