Isolated DC/DC Power ICs and Discrete Power Supply Solutions for Distributed Power Architectures

Isolated power supply design with transformer and ICs
For more than 50 years, RECOM has been developing solutions for DC/DC power conversion. This position is based on continuous technological advancement as well as consistent optimization of quality, reliability, and power density. In addition to its established portfolio of DC/DC modules, RECOM has expanded its offering to include proprietary power ICs that are already used in selected module series. These ICs ensure reproducible electrical performance across temperature and load ranges and enable economies of scale at higher production volumes.

RECOM offers designers the choice between fully integrated DC/DC modules and IC-based discrete solutions. A module is pre-assembled, qualified, and ready for immediate use. In contrast, a discrete solution based on power ICs and synchronous rectifier ICs provides greater flexibility in terms of layout, component placement, and thermal design. Integration into existing SMT processes remains fully supported. At the same time, increasing production volumes enable cost advantages comparable to those of conventional SMD components. RECOM thus combines both approaches within a consistently structured product portfolio.

A central element of this strategy is the RVP and RVS series from RECOM. The RVP series comprises unregulated primary-side transformer driver power ICs, while the RVS series provides secondary-side synchronous rectifier ICs. In combination, these components enable the implementation of isolated DC/DC converters with power levels up to 10W. The ICs are designed for a high level of integration and support the realization of functional isolation up to reinforced isolation. At the same time, the number of external components is reduced, minimizing design effort, bill of materials, and potential sources of error.

Primary-Side Power ICs (RVP Series)

The RVP series of unregulated DC/DC power ICs supports input voltages up to 30V and is available in various topology variants to address different system requirements. Push-pull power ICs such as RVP010, and RVP6501 address a wide range of isolated applications. The RVP6501 offers pin and functional compatibility with the industry-established 6501-type, allowing existing designs to be migrated with minimal layout modification effort.

For applications focused on simplified magnetics design, the RVP001, RVP003, and RVP005 types utilize a full-bridge topology. This eliminates the need for a primary-side center-tapped winding, simplifying the winding structure and reducing magnetic asymmetries. The symmetrical drive of the transformer core supports efficient utilization of the magnetic material.

Secondary-Side Synchronous Rectifier ICs (RVS Series)

On the secondary side, the RVP drivers can be combined with the intelligent synchronous rectifier IC RVS002. The RVS series replaces conventional diode rectifiers, significantly reducing secondary-side power losses. Through synchronous rectification, conduction losses are minimized, efficiency is increased, and thermal stress is reduced. At the same time, the number of external components such as dummy resistors or additional compensation components is lowered. The result is a reproducible, layout-friendly design with improved efficiency.

Matched SMD Transformers (RMR Series)

To further reduce development effort, RECOM supports its IC solutions with pre-qualified SMD transformers from the RMR series. These transformers are electrically matched to the parameters of the RVP driver power ICs and enable discrete isolated DC/DC converters with defined insulation classes – from 1500VDC functional isolation up to 8000VDC reinforced isolation.

The validated combination of primary-side power IC, transformer, and secondary-side synchronous rectifier significantly shortens the prototyping phase and reduces design risk. In addition to standard variants, customer-specific voltage combinations up to 24V are available for high-volume applications. This enables application-specific solutions with short time-to-market, without compromising an established supply chain.

Protection and Operating Functions

The RVP and RVS ICs feature integrated protection functions such as short-circuit protection, soft-start, and an extended operating temperature range from −40°C to +125°C. Input voltages up to 30V are supported. These characteristics qualify the components for industrial, energy, and medical applications with increased requirements for robustness, electrical isolation, and long-term stability.
  系列
1 RECOM | RMR-003 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
2 RECOM | RMR-004 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:3000V DC/1 分钟
  • 工作温度:-40℃~125℃
3 RECOM | RMR-005 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
4 RECOM | RMR-006 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
5 RECOM | RMR-007 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
6 RECOM | RMR-008 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:3000V DC/1 分钟
  • 工作温度:-40℃~125℃
7 RECOM | RMR-009 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
8 RECOM | RMR-010 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:3000V DC/1 分钟
  • 工作温度:-40℃~125℃
9 RECOM | RMR-012 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:4500V AC/1 分钟
  • 工作温度:-40℃~125℃
10 RECOM | RMR-013 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:3000V DC/1 分钟
  • 工作温度:-40℃~125℃
11 RECOM | RMR-015 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
12 RECOM | RMR-016 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:3000V DC/1 分钟
  • 工作温度:-40℃~125℃
13 RECOM | RMR-018 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:5000V AC/1 分钟
  • 工作温度:-40℃~125℃
14 RECOM | RMR-020 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:3000V DC/1 分钟
  • 工作温度:-40℃~125℃
15 RECOM | RMR-028 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:5000V AC/1 分钟
  • 工作温度:-40℃~125℃
16 RECOM | RMR-031 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:5000V AC/1 分钟
  • 工作温度:-40℃~125℃
17 RECOM | RMR-039 Series | TRANSFORMER, SMD
重点
  • 小型隔离变压器
  • SMD 表面贴装
  • 隔离电压:1500V DC/1 分钟
  • 工作温度:-40℃~125℃
18 RECOM | RVP001 Series | IC, SMD (pinless)
重点
  • 全桥拓扑结构
  • 高度集成、方案简洁
  • 内置 0.13Ω NMOS 管
  • 内置 0.25Ω PMOS 管
19 RECOM | RVP003 Series | IC
重点
  • 全桥拓扑结构
  • 高度集成,所需外围元件极少
  • 集成 30V / 0.25Ω N 沟道 MOSFET
  • 集成 30V / 0.60Ω P 沟道 MOSFET
20 RECOM | RVP005 Series | IC, SMD
重点
  • 全桥拓扑结构
  • 支持开环 LLC 驱动模式
  • 集成度高,方案简洁
  • 内置 30V/0.25Ω NMOS 管
21 RECOM | RVP010 Series | IC, SMD
重点
  • 推挽拓扑结构
  • 集成度高,外围电路简洁
  • 内置 24V/0.1Ω LDMOS 管
  • 1.7A 限流保护
22 RECOM | RVP6501 Series | IC, SMD
重点
  • 推挽拓扑结构
  • 集成度高,外围电路简洁
  • 内置 24V/0.3Ω LDMOS 功率管
  • 0.8A 限流保护
23 RECOM | RVPW011 Series | IC, SMD (pinless)
重点
  • 输入电压5V~50V 超宽范围
  • 适用于原边反馈反激式变换器
  • 最小采样时间低至0.4μS
  • 重载下工作于边界导通模式
24 RECOM | RVPW012 Series | IC, SMD (pinless)
重点
  • 输入电压4V~80V 超宽范围
  • 原边反馈(PSR)最小采样时间低至0.4μS
  • 在重载条件下以边界传导模式(BCM)导通
  • 集成132V/0.2Ω LDMOS
25 RECOM | RVPW014 Series | IC, SMD
重点
  • 适用于原边反馈(PSR)与副边反馈(SSR)反激、升压、降压拓扑
  • 原边反馈(PSR)最小采样时间低至 0.4μs
  • 兼容连续导通模式(CCM)与断续导通模式(DCM)
  • 集成 90V/0.1Ω LDMOS
26 RECOM | RVPW015 Series | IC, SMD
重点
  • 适用于原边反馈(PSR)与副边反馈(SSR)反激、升压、降压拓扑
  • 原边反馈(PSR)最小采样时间低至 0.4μs
  • 兼容连续导通模式(CCM)与断续导通模式(DCM)
  • 集成 132V/0.6Ω LDMOS
27 RECOM | RVPW016 Series | IC, SMD
重点
  • 输入电压范围:4V~100V 宽压
  • 适用于反激、降压、升压等多种拓扑
  • 限流阈值电压:156mV
  • 单电阻可编程振荡器
28 RECOM | RVS002 Series | IC, SMD (pinless)
重点
  • 桥式整流结构
  • 集成度高,外围电路简单
  • 内置两颗肖特基二极管
  • 内置两颗 N 沟道 LDMOS 晶体管
29 RECOM | RVSW013 Series | IC, SMD (pinless)
重点
  • 可用于 PWM 控制与同步整流
  • 同步整流兼容连续导通模式(CCM)与断续导通模式(DCM)
  • 限压保护下的恒流补偿功能,实现恒流放电
  • 副边反馈(SSR)重载时可进入 CCM 模式
30 RECOM | RVSY018 Series | IC, SMD
重点
  • 相对峰值电压检测,确保有效开通性能
  • 可编程智能限压导通,适配同步整流 MOS 管
  • 支持 DCM 与 CCM 工作模式
  • 超快关断延迟:10ns;开通延迟:30ns