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12V, 100mA Isolated Step-Up/Step-Down Voltage Regulator S21Z1F12
This step-up/step-down voltage regulator consists of an isolated DC-to-DC power module between an input step-down (buck) regulator and an output step-up (boost) regulator. This enables up to 100 mA at 12 V out or 300 mA at 5 V out from a wide 5.5 V to 36 V input.
| Input voltage | Output voltages | Max continuous output current |
|---|---|---|
| 5.5 V to 36 V | 12 V | 100 mA* |
| 5 V | 300 mA* |
* Max current per channel when the other channel current is zero.
Compare all products in Isolated DC-DC Power Modules or Step-Up/Step-Down Voltage Regulators.
| Description | Specs (12) | Pictures (10) | Resources (1) | FAQs (0) | On the blog (0) | Distributors (0) |
|---|
Dimensions
| Size: | 0.4″ × 1.3″ × 0.16″ |
|---|---|
| Weight: | 1.7 g |
General specifications
| Minimum operating voltage: | 5.5 V1 |
|---|---|
| Maximum operating voltage: | 36 V |
| Maximum output current: | 100 mA |
| Output voltage: | 12 V2 |
| Reverse voltage protection?: | N |
| Isolated power transfer?: | Y |
| Working isolation voltage: | 820 VRMS |
| Maximum quiescent current: | 6 mA3 |
Identifying markings
| PCB dev codes: | reg40c |
|---|---|
| Other PCB markings: | 0J16040 |
Notes:
- 1
- Can operate down to around 4.6 V with reduced output current.
- 2
- Regulator also has a 5V output that can deliver up to 300 mA.
- 3
- While enabled with no load. See the quiescent current graph under the description tab for more information. Can be reduced to approximately 10 µA per volt on VIN using the EN pin.
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S21Z1F12INTRO: Get one or more of #5764 12V, 100mA Isolated Step-Up/Step-Down Voltage Regulator S21Z1F12 at $7.77. This offer is valid through 31 May 2026.
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