DC DC Converters

Part Number	Description / PDF	Quantity
CPT3C36NS Semiconductor Circuits, Inc.	15V 3A 18-72VIN 16TH NEG ENB W/S	0
CPT8B48PS Semiconductor Circuits, Inc.	12V 8A 36-75VIN 16TH POS ENB W/S	0
CPT8B48NS Semiconductor Circuits, Inc.	12V 8A 36-75VIN 16TH NEG ENB W/S	0
CPT1C24PS Semiconductor Circuits, Inc.	15V 1A 18-36VIN 16TH POS ENB W/S	0
CPE5R48N Semiconductor Circuits, Inc.	DC DC CONVERTER 29.8V 149W	3
CP75C1425018P Semiconductor Circuits, Inc.	DC DC CONVERTER 24V 60W	0
CP30C1225036N Semiconductor Circuits, Inc.	DC DC CONVERTER 12V 30W	5
CPT8A18N Semiconductor Circuits, Inc.	DC DC CONVERTER 5V 40W	19
CPE20A36NS Semiconductor Circuits, Inc.	5V 20A 18-75VIN 8TH NEG ENB W/SM	0
CP30C11600018N Semiconductor Circuits, Inc.	DC DC CONVERTER 5V 30W	1
CPE30A48N Semiconductor Circuits, Inc.	DC DC CONVERTER 5V 150W	15
CPE2U36PB Semiconductor Circuits, Inc.	48V 1.8A 18-72VIN 8TH POS ENB W/	10
CPE6D24PS Semiconductor Circuits, Inc.	24V 6A 18-36VIN 8TH POS ENB W/SM	0
CP15B2310018P Semiconductor Circuits, Inc.	DC DC CONVERTER +/-15V 15W	2
CP15B1130036P Semiconductor Circuits, Inc.	DC DC CONVERTER 5V 15W	32
CPT7B24NB Semiconductor Circuits, Inc.	12V 7A 18-36VIN 16TH NEG ENB W/B	1
CP30B1775036P Semiconductor Circuits, Inc.	DC DC CONVERTER 3.3V 25W	0
CPE5C36PS Semiconductor Circuits, Inc.	15V 5A 20-72VIN 8TH POS ENB W/SM	0
CPT3C36N Semiconductor Circuits, Inc.	DC DC CONVERTER 15V 45W	0
CP75C1340018P Semiconductor Circuits, Inc.	DC DC CONVERTER 15V 60W	0

DC DC Converters

1. Overview

Board Mount DC-DC Converters are electronic devices that convert direct current (DC) from one voltage level to another through switching technology. They enable voltage regulation and power distribution in embedded systems, providing galvanic isolation, voltage matching, and efficiency optimization. These converters are critical in modern electronics for enabling compact designs, improving energy efficiency, and ensuring stable power delivery in applications ranging from consumer devices to industrial equipment.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Non-Isolated Converters	Shared ground reference, high efficiency (85-95%), low cost	Point-of-load regulation in servers
Isolated Converters	Galvanic isolation (1-6kV), reinforced safety, wide input range	Medical equipment power supplies
Step-Down (Buck)	Converts higher input to lower output voltage	12V to 3.3V for microprocessors
Step-Up (Boost)	Increases input voltage to higher output levels	5V to 12V for display backlighting
Bidirectional	Supports power flow in both directions	Energy storage systems in EVs

3. Structure and Components

Typical construction includes:

Input EMI filter (common-mode choke + capacitors)
Power MOSFET/IGBT switching stage
Planar transformer (for isolation types)
PWM controller IC with feedback loop
Synchronous rectifier (for high-efficiency designs)
Output LC filter (inductor + ceramic capacitors)

4. Key Technical Specifications

Parameter	Importance
Input Voltage Range	Determines compatibility with power sources
Output Voltage Accuracy	Ensures stable power for sensitive circuits
Efficiency (Typ. 80-97%)	Impacts thermal performance and energy costs
Power Density (W/in )	Key metric for space-constrained applications
Operating Temperature	Defines performance in harsh environments
Isolation Voltage	Safety compliance for medical/industrial use

5. Application Fields

Major industries include:

Telecommunications (5G base stations, optical networking equipment)
Industrial Automation (PLCs, robotics controllers)
Medical Devices (patient monitoring systems, imaging equipment)
Consumer Electronics (gaming consoles, VR headsets)
Renewable Energy (solar inverters, energy storage systems)

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
TI (Texas Instruments)	LM5145	65V input, 2.5A output, 95% efficiency
Monolithic Power	MPQ4420	45V input, 2A output, 3x3mm QFN package
Vicor	DCM3114	48V to 12V, 180W, 342W/in power density
CUI Inc	VX78-1000	1000V isolation, 10W output, medical grade

7. Selection Guidelines

Key factors to consider:

Input/output voltage requirements and transient response
Load current profile (continuous vs peak demands)
Thermal management capabilities
Form factor constraints (e.g., 1/16th brick standard)
Protection features (OVP, OCP, OTP)
Compliance certifications (CE, UL, IEC 60601-1)

8. Industry Trends

Current development directions include:

Adoption of GaN/SiC wide bandgap semiconductors for >97% efficiency
Digital control loops for dynamic voltage scaling
3D packaging to achieve >500W/in power density
Integrated magnetics for reduced component count
Smart converters with PMBus interface for telemetry