Automotive 2V to 40V Low Iq Single Boost & Dual Synchronous Buck Controller
Product details
Parameters
Package | Pins | Size
Features
- 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
- Two Synchronous Buck Controllers
- 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: 30 µA (One Buck On), 35 µA (Two Bucks On)
- Low Shutdown Current: Ish < 4 µA
- Buck Output Range 0.9 to 11 V
- 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
Description
The TPS43330A-Q1 device 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 applications 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 30 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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS43330A-Q1 Low IQ, Single-Boost Dual Synchronous Buck Controller datasheet (Rev. B) | Jul. 28, 2016 |
User guide | TPS4333x-Q1 / TPS4335x-Q1 Design Checklist | Oct. 28, 2013 | |
User guide | TPS4333xEVM | Apr. 01, 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The Cranking simulator generates preprogrammed cranking pulses, resembling typical pulse as seen on Car-Battery during cranking (e.g. during start-stop operation). Other pulses can be configured via source-code change, which makes it applicable for any supply-voltage profile in the range of 2.18V.
(...)
Features
- 3 pre-programmed typical cranking pulses
- Other pulses individually programmable via firmware-change
- up to 50W output power
- Adjustable repetition rate
- Continuous or single-shot operation
Description
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.
Features
- Two Synchronous Buck Controllers
- One Pre-Boost Controller
- Input Range up to 40V, (transients up to 60V), Operation Down to 2V when Boost is enabled
- Low Power Mode Iq: 30uA (one Buck on), 35uA (two Bucks on)
- Low Shutdown Current Ish < 4uA
- Boost Output Selectable: 7V/10V/11V
- Programmable frequency and (...)
Design tools & simulation
Reference designs
Design files
-
download TIDA-00801 BOM.pdf (112KB) -
download TIDA-00801 Assembly Drawing .pdf (370KB) -
download TIDA-00801 PCB.pdf (4185KB) -
download TIDA-00801 CAD Files.zip (2154KB) -
download TIDA-00801 CAD Files (Netlist).zip (22KB) -
download TIDA-00801 Gerber.zip (885KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTSSOP (DAP) | 38 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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