Texas Instruments
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The classic regulator building block: an error amplifier, a reference and a pass transistor brought out separately, so it can be built into almost any supply — including with an external pass transistor for many amps.
| Part number | LM723 |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Integrated Circuits › Linear Regulators & LDOs |
| Package | DIP-14 |
| Pins | 14 |
| Value | 2V to 37V |
| Voltage (max) | 37 V |
| Voltage (min) | 2 V |
LM723 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | NC | nc | Not connected |
| 2 | CURRENT LIMIT | input | Current limit sense |
| 3 | CURRENT SENSE | input | Current sense |
| 4 | INV | input | Inverting input |
| 5 | NON-INV | input | Non-inverting input |
| 6 | VREF | power out | 7.15V reference output |
| 7 | V- | ground | Negative supply |
| 8 | NC | nc | Not connected |
| 9 | VZ | passive | Zener for negative outputs |
| 10 | VOUT | power out | Regulated output |
| 11 | VC | power | Collector of the pass transistor |
| 12 | V+ | power | Positive supply |
| 13 | FREQ COMP | passive | Frequency compensation |
| 14 | NC | nc | Not connected |
Schematic symbol and footprint
Schematic symbol
Footprint: DIP-14 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.