LT3971EMSE vs LT3971EMSE-3.3 Comparison
Detailed side-by-side comparison of LT3971EMSE by Analog Devices and LT3971EMSE-3.3 by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Analog Devices
LT3971EMSE-3.3 - 38V, 1.2A, 2MHz Buck Regulator | Analog Devices
LT3971EMSE-3.3 ✓ ActiveSpecification Comparison
| Parameter | LT3971EMSE | LT3971EMSE-3.3 |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.20 | $4.65 |
| Topology | Buck (Step-Down) Switching Regulator | Buck (Step-Down) Switching Regulator |
| Input Voltage Range | Up to 38 V | 4.3 V to 38 V |
| Maximum Output Current | 1.2 A | 1.2 A |
| Peak Switch Current | 1.9 A | — |
| Quiescent Current (Burst Mode, no load) | 2.8 µA | — |
| Shutdown Supply Current | 700 nA | — |
| Switching Frequency Range | 200 kHz to 2 MHz | — |
| Output Voltage | Adjustable | 3.3 V (fixed) |
| Enable Pin Threshold | 1 V (accurate) | — |
| Power Good Flag Threshold | 91% of programmed VOUT | — |
| Soft-Start | Programmable via SS capacitor | — |
| Operating Junction Temperature | 0°C to +125°C (E grade) | — |
| Extended Junction Temperature (by design) | -40°C to +125°C | — |
| Package | 10-MSOP with Exposed Pad | 10-TFSOP, 10-MSOP (0.118" / 3.00 mm width) Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant (PBF suffix) |
| Switching Frequency | — | 200 kHz to 2 MHz (programmable) |
| Quiescent Current | — | 2.8 µA (typ, no load, output regulating) |
| Efficiency | — | Up to ~90% (application dependent, Burst Mode at light load) |
| Internal Switch Current | — | 1.2 A |
| Light-Load Operation | — | Burst Mode (low ripple) |
| Feedback Reference / Internal Divider | — | 10 MΩ (fixed-output versions) |
| Operating Temperature Range | — | -40 °C to +125 °C (E-grade) |
| MSL Level | — | [DATA_NEEDED: MSL level] |
| Lead-Free | — | Yes (Pb-free PBF finish) |