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LMR33620APCQRNXRQ1

Automotive 3.8-V to 36-V, 2-A synchronous step-down voltage converter

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LMR33620APCQRNXRQ1
Datasheet:

LMR33620APCQRNXRQ1 Datasheet (PDF)
Vin (min) (V):

3.8
Vin (max) (V):

36
Vout (min) (V):

1
Vout (max) (V):

34
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LMR33620APCQRNXRQ1 General Description

The LMR336x0AP-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 LMR336x0AP-Q1 drives up to 2 A or 3 A of load current from an input of up to 36 V. The LMR336x0AP-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-to-use solutions for a wide range of applications. The LMR336x0AP-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 LMR336x0AP-Q1 is available in a 12-pin 3-mm × 2-mm next generation VQFN package with wettable flanks.

Key Features

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
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: 2 A, 3 A
- 75-mΩ/50-mΩ R_DS-ON power MOSFETs
- Peak-current-mode control
- Short minimum on time of 68 ns
- Frequency: 400 kHz, 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
Create a custom design using the LMR336x0AP-Q1 with the WEBENCH Power Designer

Specifications

Vin (min) (V)	3.8	Vin (max) (V)	36
Vout (min) (V)	1	Vout (max) (V)	34
Iout (max) (A)	2	Iq (typ) (mA)	0.024
Switching frequency (min) (kHz)	400	Switching frequency (max) (kHz)	2100
EMI features	Low parasitic Hotrod packaging	Features	Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, Wettable flanks package
Operating temperature range (°C)	-40 to 125	Rating	Automotive
TI functional safety category	Functional Safety-Capable	Regulated outputs (#)	1
Control mode	current mode	Duty cycle (max) (%)	98
Type	Converter	feature-number-of-outputs
feature-output-voltage-v		feature-input-output-type
feature-efficiency-		feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	12
feature-cecc-qualified		feature-esd-protection
feature-escc-qualified		feature-military	No
feature-aec-qualified	Yes	feature-aec-qualified-number	AEC-Q100
feature-auto-motive	Yes	feature-p-pap	Yes
feature-eccn-code	EAR99	feature-svhc
feature-svhc-exceeds-threshold	No