LMR33640ADDAR vs LMR33630CDDAR Comparison
Detailed side-by-side comparison of LMR33640ADDAR by Texas Instruments and LMR33630CDDAR by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
LMR33640ADDAR - 4A 36V Synchronous Buck Converter | Texas Instruments
LMR33640ADDAR ✓ ActiveSpecification Comparison
| Parameter | LMR33640ADDAR | LMR33630CDDAR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.18 | $1.95 |
| Topology | Synchronous Buck (Step-Down) | Synchronous Step-Down (Buck) |
| Input Voltage Range | 3.8 V to 36 V | 3.8 V to 36 V |
| Output Voltage Range | 1 V to 24 V (adjustable) | 1 V to 24 V |
| Continuous Output Current | 4 A | — |
| Switching Frequency | 400 kHz (typical) | 2.1 MHz (DDA grade) |
| Quiescent Current (no load) | 76 uA (typical) | — |
| Light-Load Iq | 25 uA (typical) | — |
| Feedback Reference Accuracy | 1% (over temperature) | — |
| Control Mode | Peak current mode | Peak Current Mode with internal compensation |
| Enable Input | Precision EN (active high, with PG) | — |
| Power-Good Flag | Yes (open-drain PG) | Yes |
| Internal MOSFETs | Yes (synchronous N-channel high-side and low-side) | — |
| Internal Compensation | Yes | — |
| Operating Junction Temperature | -40°C to +125°C | — |
| Package | PowerSOIC-8 (DDA) 3.90 mm body | 8-pin HSOIC EP (DDA) PowerPAD |
| MSL Level | Level-2 (per JEDEC J-STD-020) | Level-2, 260 C, 1 year |
| Functional Safety | Functional Safety-Capable (documentation available) | — |
| RoHS Status | Compliant | Compliant |
| Maximum Output Current | — | 3 A |
| Switching Frequency Range | — | 400 kHz to 2.1 MHz |
| Quiescent Current (typ) | — | 24 uA |
| Minimum On-Time | — | [DATA_NEEDED: minimum on-time] |
| Efficiency | — | Up to >90% (load and VIN-dependent) |
| Mounting Type | — | Surface Mount |
| Operating Temperature Range | — | -40 C to +125 C (TJ) |
| EMI | — | Ultra-low EMI design |