Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller
Product details
Parameters
Package | Pins | Size
Features
- Qualified for Automotive Applications
- AEC-Q100 Test Guidance With the Following
- Device Temperature Grade 1: –40°;C to +125°;C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Input Operating Range from 3.8 V to 65 V (70 V Absolute Maximum)
- Two Interleaved Buck Controllers With:
- VOUT1 Fixed 3.3 V, 5 V, or Adjustable from 1.5 V – 15 V, Accuracy ±1%
- VOUT2 Fixed 5 V, 8 V, or Adjustable from 1.5 V – 15 V, Accuracy ±1%
- Fixed 2.2-MHz or 440-kHz Switching Frequency, Accuracy ±7%
- Optional Synchronization to an External Clock
- SYNC Output Clock for Additional Converters
- Shutdown Mode Current: 9 µA Typical
- No Load Standby Current: 35 µA Typical (One Channel Operating)
- Current Limit Threshold Programmable to 50 mV or 75 mV, Accuracy ±10%
- Independent Enable Inputs for VOUT1 and VOUT2
- Hiccup Mode Protection for Sustained Overload
- Independent Power Good Outputs
- High-Side and Low-Side Gate Drivers With Adjustable Slew Rate Control
- Selectable Diode Emulation or Continuous Conduction at Light Load
- 40-Pin VQFN Package With Wettable Flanks
Description
The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN step-down converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation.
The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180°; out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- 2GB DDR3L
- LP8733/LP8732 Power Solution
- On-board eMMC, NAND, NOR
- USB3, USB2, PCIe, Ethernet, COM8Q, CAN, MLB, MicroSD and HDMI connectors
Description
The J6Entry/RSP EVM is an evaluation platform designed to speed up development efforts and reduce time to market for applications such as Infotainment, reconfigurable Digital Cluster or Integrated Digital Cockpit.
The main CPU board integrates these key peripherals such as Ethernet or HDMI, while the (...)
Features
- 10.1" Display with capacitive Touch
- JAMR3 Radio Tuner Application Board
- 2GB DDR3L
- LP8733/LP8732 Power Solution
- On-board eMMC, NAND, NOR
- USB3, USB2, PCIe, Ethernet, COM8Q, CAN, MLB, MicroSD and HDMI connectors
Description
The LM5140RWGEVM evaluation board provides a fully functional buck power supply, employing peak current mode control. The evaluation board provides two independent outputs, a 3.3V @ 6A and a 5.0V @ 5A. The nonomal input voltage range is 8V-18V, with an extended operating range of 3.8V to 42V.  (...)
Features
- VIN 3.8V to 42V
- Dual outputs 3.3V @6A and 5.0V @5A
- 2.2MHz operation to avoid the Aumotive AM Band
- Low Shutdown IQ 10µA
- Low Standby Current 35µA one channel enabled, no-load
Description
Features
- VIN 3.8V to 42V
- Dual outputs 3.3V @5A and 5.0V @5A
- 2.2MHz operation to avoid the Aumotive AM Band
- Low Shutdown IQ 10µA
- Low Standby Current 35µA the output inregualtion, no-load
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Determine filter inductance and input and output filter capacitances
- Optimize the design using efficiency and solution size as key performance metrics
- Select components for soft-start, output voltage and compensation
- Inspect converter efficiency and component power dissipation
- Analyze efficiency based (...)
Reference designs
Design files
-
download PMP30267 BOM.pdf (29KB) -
download PMP30267 Assembly Drawing.pdf (288KB) -
download PMP30267 PCB.pdf (375KB) -
download PMP30267 Altium.zip (1435KB) -
download PMP30267 Gerber.zip (62KB)
Design files
-
download TIDA-01534 BOM.pdf (65KB) -
download TIDA-01534 Assembly Drawing.pdf (421KB) -
download TIDA-01534 PCB.pdf (2276KB) -
download TIDA-01534 CAD Files.zip (1704KB) -
download TIDA-01534 Gerber.zip (1748KB)
Design files
-
download TIDA-01553 BOM.pdf (62KB) -
download TIDA-01553 Assembly Drawing.pdf (257KB) -
download TIDA-01553 PCB.pdf (1402KB) -
download TIDA-01553 CAD Files.zip (1354KB) -
download TIDA-01553 Gerber.zip (1631KB)
Design files
-
download PMP20440 BOM.pdf (33KB) -
download PMP20440 Assembly Drawing.pdf (187KB) -
download PMP20440 PCB.pdf (1022KB) -
download PMP20440 CAD Files.zip (658KB) -
download PMP20440 Gerber.zip (492KB)
Design files
-
download PMP10655 BOM.pdf (103KB) -
download PMP10655 Assembly Drawing.pdf (165KB) -
download PMP10655 PCB.pdf (1396KB) -
download PMP10655 CAD Files.zip (1372KB) -
download PMP10655 Gerber.zip (414KB)
Design files
-
download PMP15032 BOM.pdf (30KB) -
download PMP15032 Assembly Drawing.pdf (186KB) -
download PMP15032 PCB.pdf (1454KB) -
download PMP15032 CAD Files.zip (1056KB) -
download PMP15032 Gerber.zip (585KB)
Design files
-
download PMP30059 BOM.pdf (29KB) -
download PMP30059 Assembly Drawing .pdf (233KB) -
download PMP30059 PCB .pdf (323KB) -
download PMP30059 Altium.zip (977KB) -
download PMP30059 Gerber.zip (56KB)
The design has protections, such as load dump through TVS (ISO pulse testing), as well as reverse voltage (innovative smart diode with very low Iq) protection. Furthermore, all the controllers (boost and (...)
Design files
-
download TIDA-00744 BOM.pdf (28KB) -
download TIDA-00744 Gerber.zip (640KB) -
download TIDA-00744 Altium.zip (1537KB)
Design files
-
download PMP10749 BOM.pdf (25KB) -
download PMP10749 Altium.zip (1778KB) -
download PMP10749 Gerber.zip (454KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFNP (RWG) | 40 | 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
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