3.8-V to 36-V, 3-A synchronous step-down voltage converter
Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 12-PowerVFQFN
The LMR33630-Q1 automotive-qualified regulator
is an easy-to-use, synchronous, step-down DC/DC
converter that delivers best-in-class efficiency for
rugged applications. The LMR33630-Q1 drives up
to 3 A of load current from an input of up to
36 V. The LMR33630-Q1 provides high light load
efficiency and output accuracy in a very small solution
size. Features such as a power-good flag and
precision enable provide both flexible and easy-touse solutions for a wide range of applications. The
LMR33630-Q1 automatically folds back frequency at
light load to improve efficiency. Integration eliminates
most external components and provides a pinout
designed for simple PCB layout. Protection features
include thermal shutdown, input undervoltage lockout,
cycle-by-cycle current limit, and hiccup short-circuit
protection. The LMR33630-Q1 is available in a 12-pin
3 mm × 2 mm next generation VQFN package with
wettable flanks
• AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125°C, TA
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• Configured for rugged automotive applications
– Input voltage range: 3.8 V to 36 V
– Output voltage range: 1 V to 24 V
– Output current: 3 A
– 75-mΩ/50-mΩ RDS-ON power MOSFETs
– Peak-current-mode control
– Short minimum on-time of 68 ns
– Frequency: 400 kHz, 1.4 MHz, 2.1 MHz
– Integrated compensation network
• Low EMI and switching noise
– HotRod™ package
– Parallel input current paths
• High power conversion at all loads
– Peak efficiency > 95%
– Low shutdown quiescent current of 5 µA
– Low operating quiescent current of 25 µA
#CommonPartsLibrary #IntegratedCircuit #PowerManagement #LMR33630
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