Key facts
- Brand
- Linear Technology
- Model
- LT3437
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-06
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Linear Technology LT3437 High Voltage Step-Down Switching Regulator Datasheet
The LT3437 is a high voltage 500mA, 200kHz step-down switching regulator featuring a saturating switch design with 0.8Ω on-resistance. It accepts input voltages up to 80V and includes load dump protection to 80V. The device operates in Burst Mode to achieve 100µA quiescent current at light loads, which can be defeated for lower ripple.
Read onlineLinear Technology LT3437 specifications
| Switching Frequency | 200kHz |
|---|---|
| Peak Switch Current | 500mA |
| Input Voltage Range | 3.3V to 60V |
| Load Dump Protection | 80V |
| Quiescent Current | 100µA |
| On-Resistance | 0.8Ω |
| Feedback Reference Voltage | 1.25V |
| Package Type | 10-Pin Thermally Enhanced DFN |
Source: Linear Technology LT3437 High Voltage Step-Down Switching Regulator Datasheet
All Linear Technology LT3437 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum input voltage?
The regulator accepts input voltages up to 80V.
From: Linear Technology LT3437 High Voltage Step-Down Switching Regulator Datasheet
What is the quiescent current in Burst Mode?
The quiescent current is 100µA in Burst Mode operation.
From: Linear Technology LT3437 High Voltage Step-Down Switching Regulator Datasheet
What is the minimum input voltage for the LT3437?
The minimum input voltage is 2.5 V (typical) and 3 V (minimum) as specified in the electrical characteristics.
How can burst‑mode operation be disabled?
Burst‑mode can be defeated by applying a logic‑high signal to the SYNC pin, which disables the low‑load mode.