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| Part Number | MAX8840ELT21+T | MAX8840ELT31+T | MAX8840ELT28+T | MAX8840ELT25+T | MAX8840ELT26+T | MAX8840ELT29+T | MAX8840ELT27+T |
|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Active | Active | Active | Obsolete | Active | Obsolete |
| Output Configuration | Positive | - | Positive | Positive | Positive | Positive | Positive |
| Output Type | Fixed | - | Fixed | Fixed | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | - | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Max) | 6V | - | 6V | 6V | 6V | 6V | 6V |
| Voltage - Output (Min/Fixed) | 2.1V | - | 2.8V | 2.5V | 2.6V | 2.9V | 2.7V |
| Voltage - Output (Max) | - | - | - | - | - | - | - |
| Voltage Dropout (Max) | 0.18V @ 120mA (Typ) | - | 0.135V @ 120mA (Typ) | 0.135V @ 120mA (Typ) | 0.135V @ 120mA (Typ) | 0.135V @ 120mA (Typ) | 0.135V @ 120mA (Typ) |
| Current - Output | 150mA | - | 150mA | 150mA | 150mA | 150mA | 150mA |
| Current - Quiescent (Iq) | 90 µA | - | 90 µA | 90 µA | 90 µA | 90 µA | 90 µA |
| Current - Supply (Max) | - | - | - | - | - | - | - |
| PSRR | 78dB ~ 54dB (1kHz ~ 100kHz) | - | 78dB ~ 54dB (1kHz ~ 100kHz) | 78dB ~ 54dB (1kHz ~ 100kHz) | 78dB ~ 54dB (1kHz ~ 100kHz) | 78dB ~ 54dB (1kHz ~ 100kHz) | 78dB ~ 54dB (1kHz ~ 100kHz) |
| Control Features | Enable | - | Enable | Enable | Enable | Enable | Enable |
| Protection Features | Over Current, Over Temperature | - | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | - | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 6-WFDFN | - | 6-WFDFN | 6-WFDFN | 6-WFDFN | 6-WFDFN | 6-WFDFN |
| Supplier Device Package | 6-uDFN (1.5x1) | - | 6-uDFN (1.5x1) | 6-uDFN (1.5x1) | 6-uDFN (1.5x1) | 6-uDFN (1.5x1.0) | 6-uDFN (1.5x1) |
