Linear Technology Corporation introduces the LT3690 , a synchronous step-down switching regulator that accepts 36V inputs, which delivers up to 4A of continuous output current at 93% efficiency. Operating over a VIN range of 3.9V to 36V, the LT3690 provides 60V transient protection, making it ideal for load dump and cold crank conditions common in automotive applications. The LT3690 's Burst Mode operation requires only 70uA of quiescent current for applications such as automotive or telecom systems, as these applications require always-on operation and optimal battery life. The switching frequency is user programmable from 170kHz to 1.5MHz, allowing designers to optimize efficiency while avoiding critical noise sensitive bands. Its 4mm x 6mm QFN-26 package combined with high switching frequency allows the use of small external inductors and capacitors, providing a compact, thermally efficient solution.
The LT3690 features a high efficiency 5.5A, 90mΩ high side switch with the necessary boost diodes, oscillators, control and logic circuitry integrated into a single chip. The 30mΩ internal synchronous power switch increases efficiency and eliminates the need for an external clamped Schottky diode. Low ripple Burst Mode operation maintains high efficiency at low output current while maintaining output ripple below 15mVPK-PK. The special design approach enables high efficiency over a wide input voltage range, and the device's current mode topology enables fast transient response and excellent loop stability. Other features include external synchronization (from 170kHz to 1.5MHz), power good marking and robust short circuit protection.
Available in 1,000-piece quantities, the LT3690EUFE is priced at $4.95 each. The LT3690IUFE is tested to operate over the operating temperature range of -40°C to 125°C and is priced at $5.45 each in 1,000-piece quantities. All versions of the device are available from stock.
Photo Caption: 36V, 4A (IOUT), Synchronous Step-Down Switching Regulator
Performance Summary: LT3690
Wide input range: operates from an input voltage range of 3.9V to 36V, and the overvoltage lockout protection circuit can safely withstand 60V transients
· Maximum output current is 4A
· Integrated 30mΩ N-Channel Synchronous Switch
· IQ is 70uA from 12VIN to 3.3VOUT
· Low ripple burst mode operation allows output ripple <15mVP-P
· Programmable input undervoltage lockout
· 0.8V feedback reference voltage
· Output voltage range is 0.8V to 20V
· Programmable and Synchronizable Oscillator (170kHz to 1.5MHz)
· Soft start and output voltage tracking
· Robust short-circuit resistance
· Power good mark
· Small heat-resistant enhanced 4mm x 6mm QFN package
2.0mm Wire To Board Connectors
Overview of 2.0mm Pitch Wire To Board Connectors
The 2.0 mm PH connector is a low- profile and compact component delivering dependable service in requirements for high density connection to printed circuit boards.
Designed harsh environments which are frequently subjected to heat and vibration such as in heavy equipment vehicles and batteries
Delivers up to a current rating of 2.0 A and 250 V, applicable for American Wire Gauge (AWG) #24, #25, #26, #27, #28, #30, #31, #32.
Enclosing this connector is a crimp style lock designed by Antenk and a special configuration which prevents users from inverted insertion.
General Specifaction 2.0mm Wire To Board Connectors
Contact Pitch 2.0mm
No.of Contacts 2 to 16 positions
Current 2A (AWG #22 to #28)
Compatible Cross Jst PH Connector Series
Current Rating: 2A
Voltage Rating: 250V
Temperature Range: -25°C~+85°C
Contact Resistance: 20m Omega Max
Insulation Resistance: 1000M Omega Min
Withstanding Voltage: 800V AC/minute
Advantages 2.0mm Wire To Board Connectors
2.0 mm pitch serves as the best choice for densely crowded electronics systems for its small, square-edged configuration, ruggedized and shock resistant feature.
Caters Power, Signal and Grounding Contact Needs
This connector can either stand as power contacts, signal contacts or both as power and signal contacts or a signal and grounding contact. The wiring harness interconnects the PCB to various components that sends signals and power to other electronic devices.
Safe and Reliable
2.0 mm pitch connectors ensures safety, system protection and performance with its bonded metallic conduits and multiple grounding points preventing fire hazards, component damage, overheating and possible electrocution.
ROHS Compliant
The product does not contain restricted chemicals in concentrations not complying with ROHS standards. Thus, for its components, the products can be worked upon at high temperatures required by lead-free soldering.
Features and Benefits of 2.0mm Pitch Wire To Board Connectors
Smallest pitch for positive lock Wire-to-Board crimp system
Provides space savings for mounting other components
mating retention with low mating and unmating forces
Wide header variations to provides customers with many choices and design flexibility
Easy to mate and unmate
Space saving SMT Mounting that provides assembly and cost efficiencies
Automated assembly reduces manual labor processes
Application industry of 2.0mm Pitch Wire To Board Connectors:
Automotive
Electronic modules
Consumer
Air conditioner Mobile POS terminals Notebook PCS mart meters TVs Televisions UAVs/Drones
Industrial
Servo motor
Medical
Patient Monitor
This is not a definitive list of applications for this product. It represents some of the more common uses.
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ShenZhen Antenk Electronics Co,Ltd , https://www.antenkconn.com