Research Article
Power Management in Low-Power MCUs for Energy IoT Applications
Table 2
Comparison of results between traditional LDOs and the improved structure.
| | Module | Technology (μm) | Input voltage (V) | Output voltage (V) | Max output current (mA) | Quiescent current (μA) | Size (mm2) | Stability consideration |
| | LDO33 (this work) | 0.11 | 2.2-5.5 | 2.2-3.6 | 30 | 1 | 0.026 | Yes | | ULP_BPS (this work) | 0.11 | 2.2-5.5 | 2.2-3.8 | 0.1 | 0.1 | 0.003 | No | | Adaptive LDO [13] | 0.13 | 1.9-3.6 | 1.52 | 2.56 | 0.65-17.7 | 0.016 | Yes | | DLDO [22] | 0.65 | 0.5 | 0.45 | 0.2 | 2.7 | 0.042 | Yes |
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