Author: Frank Chen, MEAN WELL Product Strategy Center
Translation: OLFER Electronics Marketing Department
Following the launch of the highly efficient 78A non-isolated miniaturized DC/DC converters of the N1xx series, MEAN WELL introduces a new 2A model, the N78xx-2 series, to the market. This new series, distributed in Spain and Portugal by Electrónica OLFER, is designed to be fully compatible with the pins of traditional TO-220 linear voltage regulators of the 78xx and 79xx series, facilitating direct replacement.
The N78xx-2 series features improvements over its predecessor series, including high efficiency of up to 96% and the elimination of the need for additional heat sinks, simplifying heat management for system designers. It is specifically designed for integration into various electronic instruments, power supplies, and distributed circuit systems.
The advantages of the N78xx-2 series over the 78xx and 79xx series are described in the following table:
| Product/Type | Common linear voltage regulators | MEAN WELL switching regulator | |
| 78xx | 79xx | N78xx-2 | |
| Format | One type only | 3 types to choose from
(Plastic insulated housing to solve insufficient insulation distance in circuit design) |
|
| input voltage | 7,3-21,7V
(depends on output voltage) |
-35 to +40V | 4,5-32V
(Depends on output voltage) |
| Output voltage | +5V, +6V, +8V, +9V, +12V, +15V, +24V
(Positive) |
-5V, -8V, -12V, -15V
(Negative) |
-1,8V, +2,5V/-2,5V. +3,3V/-3,3V, +5V/-5V, +6,5V/-6,5V/ +9V/-9V, +12V/-12V, +15V/-15V
(A unit with dual output, positive voltage can be used as negative voltage output) |
| Refrigeration | Junction temperature
From -40°C to +125°C (Requires heat sink for cooling) |
From -40°C to +85°C
No external heat sink required
|
|
| Warranty | NA | 3 years in the Making | |
CHARACTERISTIC
- Pins compatible with LM78xx/LM79xx linear regulators
- Compact size
- Operating temperature range: -40°C to +85°C. Natural convection cooling, no external heat sink required
- Wide input range (up to 32V)
- Complies with BS EN/EN55032 Class B radiated without additional components
- Protections: short circuit/overload/over temperature
- Approved: EAC/UKCA/CE
- 3 year warranty
