DC to DC Controllers
LTC7803IUD#PBF
DC/DC Cntrlr Single-OUT Step Down 3000kHz 16-Pin QFN EP Tube
Analog DevicesLTC7803: 40 V, Low IQ Synchronous Step-Down Controller
The single output LTC7803 showcase the latest technology in switching regulator step-down DC/DC controllers. All products feature up to 3 MHz operating switching frequency and very low IQ, along with PassThru/100% duty cycle capability and spread spectrum frequency modulation.
40 V Low IQ, 3 MHz Synchronous Step-Down Controller with Spread Spectrum
Key Features and Benefits
- PassThru/100% duty cycle capability allows output voltages to stay in regulation longer when powered from a discharging battery
- Very low IQ increases battery run-time during standby mode
- High power onboard gate drives drive external MOSFETs with low switching loss for increased efficiency
Applications
- Automotive: Auto connect and Sensing
- Industrial Automation: Connected motion and robotics
- Instrumentation and Measurement: ATE
- Aerospace and Defense: Radar
Evaluation Board
- The LTC7803 can be evaluated with the DC2834A.
Block Diagrams and Tables
Product Technical Specifications
EU RoHS
Compliant
ECCN (US)
EAR99
Part Status
Active
HTS
8542.31.00.30
Automotive
No
PPAP
No
Number of Outputs
1
Topology
Step Down
Output Voltage (V)
0.8 to 40
Maximum Switching Frequency (kHz)
3000
Minimum Input Voltage (V)
4.5
Maximum Input Voltage (V)
40
Operating Supply Voltage Range (V)
4.5 to 40
Maximum Supply Current (mA)
0.012(Typ)
Minimum Switching Frequency (kHz)
100
Synchronous Rectifier
Yes
Synchronous Clock
Yes
Control Method
PWM
Programmability
Yes
Minimum Operating Temperature (°C)
-40
Maximum Operating Temperature (°C)
125
Supplier Temperature Grade
Industrial
Packaging
Tube
Mounting
Surface Mount
Package Height
0.75(Max)
Package Width
3
Package Length
3
PCB changed
16
Standard Package Name
QFN
Supplier Package
QFN EP
Pin Count
16
Lead Shape
No Lead