Data sheet
LM5152-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Suited for wide operating range automotive battery powered applications
- 3.8-V to 42-V input operating range
- Dynamically programmable VOUT from 5 V to 20 V (protection up to 57 V)
- Minimum boost input 0.8 V when BIAS ≥ 3.8 V
- Bypass operation when VSUPPLY > VLOAD (LM5152 only, see the device comparison table)
- Minimized battery drain
- Shutdown current ≤ 3 µA
- Automatic mode transition
- Battery drain in deep sleep ≤ 11 µA (bypass operation, charge pump off)
- Battery drain in deep sleep ≤ 33 µA (bypass operation, charge pump on)
- BIAS IQ in sleep ≤ 13 µA (skip mode)
- Strong 5-V MOSFET drivers
- Small solution size and low cost
- 2.2-MHz maximum switching frequency
- Internal boot diode
- Constant peak current limit over VIN
- Supports DCR inductor current sensing
- QFN-20 with wettable flanks
- Avoid AM band interference and crosstalk
- Optional clock synchronization
- 100-kHz to 2.2-MHz switching frequency
- Selectable switching mode (FPWM, diode emulation, skip mode)
- EMI mitigation
- Optional programmable spread spectrum
- Lead-less package
- Programmability and flexibility
- Dynamic VOUT tracking
- Dynamic switching frequency programming
- Programmable line UVLO
- Adjustable soft start
- Adaptive dead time
- Boost STATUS indicator
- Integrated protection features
- Cycle-by-cycle peak current limit
- Overvoltage protection
- HB-SW short protection
- Thermal shutdown
The LM5152x-Q1 (LM5152-Q1 and LM51521-Q1) device is a wide input range synchronous boost controller that employs peak current mode control.
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Technical documentation
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View all 4 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM5152x-Q1 Automotive Low-IQ Synchronous Boost Controller for Start-Stop/Backup Battery Power Supply datasheet (Rev. A) | PDF | HTML | 14 Apr 2022 |
| Functional safety information | LM5152x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 30 Mar 2022 | |
| User guide | LM5152EVM-BST Evaluation Module | PDF | HTML | 23 Sep 2021 | |
| Certificate | LM5152EVM-BST EU RoHS Declaration of Conformity (DoC) | 19 Jul 2021 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
LM5152EVM-BST — LM5152 evaluation module for boost controller
The LM5152EVM-BST evaluation module (EVM) showcases the features and performance of the LM5152-Q1 wide input voltage synchronous boost controller, including:
- Low IQ operation
- Internal feedback resistors
- Bypass mode operation when VIN is greater than the VOUT regulation target
- Dynamic output voltage (...)
Reference designs
PMP41085 — 100W Automotive Infotainment Display Module Reference Design With Functional Safety Capabilities
This reference design showcases the 100W automotive infotainment display module power reference design with cold crank, load dump and FuSa Capabilities.
The LM74900-Q1 is the first stage of the design playing a role of protection for negative input voltage, undervoltage, locked output, and (...)
Test report: PDF
Reference designs
PMP30963 — Backup battery reference design with preboost, charger and 1S Li-ion fuel gauge
This design shows an automotive backup battery using a 1S Li-ion battery for emergency operation. The primary power input is rated for 6-V to 18-V nominal (2.7-V to 36-V peak) to comply with 12-V automotive requirements. The secondary power input has a fuel gauge to monitor a single cell Li-ion (...)
Test report: PDF
| Package | Pins | Download |
|---|---|---|
| VQFN (RGR) | 20 | View options |
Ordering & quality
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- MSL rating/Peak reflow
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