LM2733 0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23
| Paramaters / Values | LM2733 | LM2731 | LM2735 |
|---|---|---|---|
| Output Range | Vin to 40V | 1.23V to 22V | Vin to 24 |
| Switch Current | 1 Amp | 1.5 Amp | 2.25 Amp |
| Input Min Voltage | 2.7 Volt | 2.7 Volt | 2.7 Volt |
| Input Max Voltage | 14 Volt | 14 Volt | 5.5 Volt |
| Frequency Max | 600, 1600 kHz | 600, 1600 kHz | 1700, 550 kHz |
| Output Min | 3 Volt | 1.23 Volt | 3 Volt |
| Output Max | 40 Volt | 22 Volt | 24 Volt |
| Sync Pin | No | No | No |
| Adj Switch Frequency | No | No | No |
| Frequency Min | 600, 1600 kHz | 600, 1600 kHz | 475, 1500 kHz |
| On/Off Pin | Yes | Yes | Yes |
| PowerGood / Error Flag | No | No | No |
| PWM Mode | Current | Current | |
| Topology | Boost | Boost | Boost, Sepic, FlyBack |
| Step-Up | Yes | Yes | Yes |
| Inverting | No | No | |
| Flyback | No | No | Yes |
| RegType | Switching Regulator | Switching Regulator | Switching Regulator |
| Adjustable Output | Yes | Yes | |
| Temperature Min | -40 deg C | -40 deg C | |
| Temperature Max | 125 deg C | 125 deg C | |
| Automotive | Yes | Yes | Yes |
| PowerWise | No | No |
LM2733 特性Features
- 40V DMOS FET switch
- 1.6 MHz (“X”), 0.6 MHz (“Y”) switching frequency
- Low RDS(ON) DMOS FET
- Switch current up to 1A
- Wide input voltage range (2.7V–14V)
- Low shutdown current (<1 µA)
- 5-Lead SOT-23 package
- Uses tiny capacitors and inductors
- Cycle-by-cycle current limiting
- Internally compensated
LM2733 概述Description
The LM2733 switching regulators are current-mode boost converters operating fixed frequency of 1.6 MHz (“X” option) and 600 kHz (“Y” option).
The use of SOT-23 package, made possible by the minimal power loss of the internal 1A switch, and use of small inductors and capacitors result in the industry's highest power density. The 40V internal switch makes these solutions perfect for boosting to voltages of 16V or greater.
These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.
Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.。
LM2733 开关频率Switch Frequency
| X | Y |
|---|---|
| 1.6 MHz | 0.6 MHz |
LM2733 应用Applications
- White LED Current Source
- PDA’s and Palm-Top Computers
- Digital Cameras
- Portable Phones and Games
- Local Boost Regulator
 LM2733 典型性能Typica Performance |
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LM2733 芯片订购型号
| Part Number(s) (NSID) |
Top View | Availability | Budgetary Pricing | Pack Size |
|---|---|---|---|---|
| LM2733XMF/NOPB LM2733XMF |
 SOT-23 |
Full production Lead Time: 6 weeks |
$1.04 each at 1K+ pcs | reel
of
1000  |
| LM2733XMFX/NOPB LM2733XMFX |
SOT-23 |
Full production Lead Time: 6 weeks |
$1.04 each at 1K+ pcs | reel
of
3000 |
| LM2733YMF/NOPB LM2733YMF |
SOT-23 |
Full production Lead Time: 6 weeks |
$1.04 each at 1K+ pcs | reel
of
1000 |
| LM2733YMFX/NOPB LM2733YMFX |
SOT-23 |
Full production Lead Time: 6 weeks |
$1.04 each at 1K+ pcs | reel
of
3000 |
LM2733 标准体系参考Reliability Metrics
| Part Number | Process | EFR Reject | EFR Sample Size | PPM | LTA Rejects | LTA Device Hours | FITS | MTTF (Hours) |
|---|---|---|---|---|---|---|---|---|
| LM2733XMF | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060 |
| LM2733XMFX | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060 |
| LM2733YMF | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060 |
| LM2733YMFX | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060 |
LM2733 应用技术支持与电子电路设计开发资源下载 Documents
- LM2733 数据手册DataSheet下载. pdf
- LM2733 封装形式尺寸图
- AN-1280: Application Note 1280 LM2731/LM2733 Evaluation Board
- AN-1973: Application Note 1973 Benefits and Challenges of High-Frequency Regulators
- AN-1408: Application Note 1408 Designing Power Over Ethernet Using LM5070 and DP83865
- AN-1837: Application Note 1837 LM2738 Evaluation Board
- AN-1658: Application Note 1658 LM2735 BOOST and SEPIC DC-DCRegulator
- AN-1350: Application Note 1350 LM2734 Evaluation Board
- AN-1418: Application Note 1418 LM2736 Evaluation Board
- LM2733 绿色环保信息