This is a small module designed to output 5.4v at up to 500mA for use with a pack of four 1.5v alkaline or lithium cells when replacing battery packs in vintage equipment which used mercury cells, typically a pack of four which would output a stable 5.4v.
Features:
The extremely low quiescent current means that the regulator can be left connected to the battery pack when the equipment is turned off or drawing no current with little effect on the life of the batteries.
Note that the input voltage range and output current are absolute maximum values: this module is intended for use where the input voltage is close to the required output voltage. If using the module with continuously higher input voltages and/or output currents, additional cooling will be required.
The approximate continuous dissipation the module can handle without additional cooling is 500mW
PARAMETER | TEST CONDITIONS | MIN TYP MAX | UNIT | |
|---|---|---|---|---|
Vdo | Dropout voltage | Iout = 100 mA | 92 145 | mV |
Iout = 250 mA | 173 280 | |||
Iout = 500 mA | 355 590 | |||
Icl | Output current limit | Vout = 0.9 × Vout(nom) | 525 717 970 | mA |
Ignd | Ground pin current | Iout = 0 mA | 2 4.5 | µA |
Iout= 1 mA | 15 | |||
Ishutdown | Shutdown current | Ven ≤ 0.4 V, VIN = 2.4 V, Iout = 0 mA | 325 600 | nA |
T sd(shutdown) | Thermal shutdown temperature | Shutdown, temperature increasing | 165 | °C |
T sd(reset) | Thermal shutdown reset temperature | Reset, temperature decreasing | 145 | °C |
This regulator was inspired by an idea and design by James at Clough42, shown in his YouTube channel: https://youtu.be/KcrNH6PcwpE
Although not a direct copy, James' original design is here: https://github.com/clough42/mercury-battery
North American customers should check out James' product here: https://www.ebay.com/itm/166204220126
| Product Code | 980221 |
| Condition | New |
| Weight | 0.01kg |
