LMR14030SDDAR
The LMR14030 is a 40V, 3.5A step-down converter with a 2.2MHz fixed switching frequency and ultra-low 40uA quiescent current. It features current-mode control, adjustable soft start, frequency synchronization, power-good, and adjustable UVLO, and operates from 4V to 40V input. It is suited to automotive and industrial point-of-load applications requiring high efficiency.
- Package
- SO PowerPAD-8 (DDA)
Product overview
The LMR14030 is a 40V, 3.5A step-down converter with a 2.2MHz fixed switching frequency and ultra-low 40uA quiescent current. It features current-mode control, adjustable soft start, frequency synchronization, power-good, and adjustable UVLO, and operates from 4V to 40V input. It is suited to automotive and industrial point-of-load applications requiring high efficiency.
- Manufacturer
- TI
- Part number
- LMR14030SDDAR
- Category
- Power Management
- Package
- SO PowerPAD-8 (DDA)
- Packaging
- Tape & Reel
- Condition
- New & Original
- Compliance
- RoHS Compliant
- Lifecycle
- Confirm with manufacturer
- Lead time / MOQ
- Confirm with quotation
Technical parameters
42 parametersConstruction
- VIN, EN to
- 44
- BOOT to
- 49
- FB to
- 5.5
- RT/SYNC to
- 3.6
- SW to
- 44
- Human body model (HBM), per ANSI/ESDA/ JEDEC JS-001
- 2
- V(ESD) Charged device model (CDM), per JEDEC specification
- 0.5 kV
- VIN
- 40
- VOUT
- 28
- Buck regulator
- 45 V
- SW
- 40
- FB
- 5
- EN
- 40
- Control
- 3.3 V
- SS
- 3
- Switching frequency range at RT mode
- 2500
- Switching frequency range at SYNC mode
- 2300
- Rising threshold
- 3.7 9V
- Hysteresis
- 285 mV
- IQ VFB = 1.0 V, TA = 25°C
- 40 μA
- Enable threshold +50 mV
- 4.6
- Enable threshold –50 mV
- 1.0
- TSHDN Thermal shutdown threshold
- 170
- THYS Hysteresis
- 12
- fSW Switching frequency RT = 49.9 kΩ, 1% accuracy
- 500 0kHz
- VSYNC_HI SYNC clock high level threshold
- 1.7
- VSYNC_LO SYNC clock low level threshold
- 0. 5
- TSYNC_MIN Minimum SYNC input pulse width
- 30 ns
- TLOCK_IN PLL lock in time Measured at 500 kHz
- 100 µs
- TON_MIN Minimum controllable on time VIN = 12 V, ILoad = 1
- 75 ns
- DMAX Maximum duty cycle fSW = 200 kHz
- 97 %
- 6 Submit Document Feedback Copyright © 202
- 4 Texas
Performance
- Input voltages SS to
- 5 V
- TJ Junction temperature
- 150 °C
- Tstg Storage temperature
- 150 °C
- Temperature Operating junction temperature
- 125 °C
- VIN Operation input voltage
- 40 V
- VEN_TH EN threshold voltage
- 1.20 8V
- IEN_HYS EN hysteresis current
- 3.6 μA
- ISS SS pin current TA = 25°C
- 3 μA
- RDS_ON On-resistance VIN = 12
- 90 mΩ
- ILIMT Current limit VIN = 12 V, TA = 25°C, open loop
- 5.5 6A
Specifications & documentation
Use the official manufacturer documentation to verify electrical characteristics, package dimensions and operating limits before design approval.
Request confirmation of current stock, date code, packaging, price and delivery terms. Product information does not constitute a binding offer; final specifications are confirmed with your quotation.