計算工具
TPS43337-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1:
–40°C to +125°C Ambient Operating Temperature - Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C2
- Device Temperature Grade 1:
- Two Synchronous Buck Controllers
- BuckA: Fixed Output Voltage of 3.4 V
- BuckB: Fixed Output Voltage of 1.235 V
- One Pre-Boost Controller
- Input Range up to 40 V, (Transients up to 60 V),
Operation Down to 2 V When Boost Is Enabled - Low-Power Mode IQ:
34 µA (One Buck On), 43 µA (Two Bucks On) - Low Shutdown Current Ish < 4 µA
- Boost Output Selectable: 7 V, 8.85 V, or 10 V
- Programmable Frequency and External Synchronization Range:
150 to 600 kHz - Separate Enable Inputs (ENA, ENB, ENC)
- Selectable Forced Continuous Mode or Automatic
Low-Power Mode at Light Loads - Sense Resistor or Inductor DCR Sensing for Buck Controllers
- Out-of-Phase Switching Between Buck Channels
- Peak Gate Drive Current 1.5 A
- Thermally Enhanced 38-Pin HTSSOP (DAP) PowerPAD Package
The TPS43337-Q1 includes two current-mode synchronous buck controllers and a voltage-mode boost controller. The device is ideally suited as a pre-regulator stage with low IQ requirements and for systems that must survive supply drops due to cranking events. The integrated boost controller allows the device to operate down to 2 V at the input without seeing a drop on the buck regulator output stages. At light loads, the buck controllers enable to operate automatically in low power-mode, consuming just 34 µA of quiescent current.
The buck controllers have independent soft-start capability and power-good indicators. Current foldback in the buck controllers and cycle-by-cycle current limitation in the boost controller provide external MOSFET protection. The switching frequency is programable over 150 to 600 kHz or is synchronized to an external clock in the same range
技術文件
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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LOW IQ, SINGLE-BOOST, FIXED-VOLTAGE DUAL SYNCHRONOUS BUCK CONTROLLER datasheet (Rev. A) | 2013年 9月 6日 | |
| Design guide | TPS4333x-Q1 / TPS4335x-Q1 Design Checklist | 2013年 10月 28日 | ||
| User guide | TPS4333xEVM | 2011年 4月 1日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
TPS43330EVM — TPS43330EVM 評估模組
The Texas Instruments TPS43330EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS43330 Low Iq, Single Boost, Dual Synchronous Buck Controller.
使用指南: PDF
模擬型號
TPS43337-Q1 Unencrypted PSpice Transient Model Package (Rev. A)
SLVM924A.ZIP (178 KB) - PSpice Model
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (DAP) | 38 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點