产品概览
The MIC5332-SSYMT-TR is a dual 300 mA ultra-low-quiescent-current ULDO (Ultra Low Dropout) regulator from Microchip in a compact 2 mm x 2 mm Thin MLF-8 package. Both LDO outputs are fixed at 3.3 V with +/-1% accuracy. Drawing only 25 μA per LDO, it achieves PSRR >65 dB and 50 μVrms output noise. LDO2 integrates a Power-On Reset (POR) output with programmable delay via an external capacitor, eliminating the need for a separate reset IC.
主要规格
| 输出配置 | Dual: 3.3 V / 3.3 V (both +/-1% typ) |
| Max Output Current | 300 mA per LDO |
| 输入电压 | 2.3 V to 5.5 V |
| Dropout Voltage | 120 mV typ @ 300 mA / 20 mV typ @ 50 mA |
| 静态电流 | 25 μA typ per LDO (single enable) / 40 μA (dual enable) |
| PSRR | >65 dB per LDO |
| Output Noise | 50 μVrms typ |
| POR2 Delay | Programmable: 1 sec/μF (CSET2 cap), open = zero delay |
| Output Capacitor | 1 μF ceramic (stable) |
| 工作温度 | -40 °C 至 +125 °C |
| 包装 | Thin MLF-8 (2.0 x 2.0 x 0.6 mm) |
特点
- Extremely low 25 μA/LDO quiescent current in a 2 mm x 2 mm package
- LDO2 integrated POR with programmable delay eliminates external reset IC
- Dual independent enable pins for power sequencing control
- High PSRR and low noise for sensitive analog/RF circuits
- 1 μF ceramic capacitor stability (μCap design)
- Current limit and thermal shutdown protection
应用
- Battery-powered portable devices
- FPGA/CPLD dual-rail power supply
- Processor I/O and core voltage regulation
- RF module low-noise power supply
- Portable medical equipment
- Smartphone/PDA power management
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