MIC5504-3.3YMT
MIC5501/2/3/4
Overview
Part: MIC5501/2/3/4
Type: Single Output LDO
Key Specs:
- Input Voltage Range: 2.5V to 5.5V
- Fixed Output Voltages: 1.0V to 3.3V
- Guaranteed Output Current: 300 mA
- Output Accuracy: ±2%
- Low Quiescent Current: 38 μA (typical, IOUT = 0 mA)
- Low Dropout Voltage: 160 mV @ 300 mA (typical)
- Current Limit: 400 mA (min)
- Operating Junction Temperature: –40°C to +125°C
Features:
- Stable with 1 μF Ceramic Output Capacitors
- Output Discharge Circuit: MIC5502, MIC5504
- Internal Enable Pull-Down: MIC5503, MIC5504
- Thermal-Shutdown and Current-Limit Protection
- Zero-off-mode current state
Applications:
- Smartphones
- DSC, GPS, PMP, and PDAs
- Medical Devices
- Portable Electronics
- 5V Systems
Package:
- 4-Lead 1.0 mm x 1.0 mm Thin DFN Package
- MIC5501/4 5-Lead SOT23 Package
Features
- Input Voltage Range: 2.5V to 5.5V
- Fixed Output Voltages from 1.0V to 3.3V
- 300 mA Guaranteed Output Current
- High Output Accuracy (±2%)
- Low Quiescent Current: 38 μA
- Stable with 1 μF Ceramic Output Capacitors
- Low Dropout Voltage: 160 mV @ 300 mA
- Output Discharge Circuit: MIC5502, MIC5504
- Internal Enable Pull-Down: MIC5503, MIC5504
- Thermal-Shutdown and Current-Limit Protection
- 4-Lead 1.0 mm x 1.0 mm Thin DFN Package
- MIC5501/4 5-Lead SOT23 Package
Applications
- Smartphones
- DSC, GPS, PMP, and PDAs
- Medical Devices
- Portable Electronics
- 5V Systems
Pin Configuration
The descriptions of the pins are listed in Table 3-1.
| 4-Lead TDFN Pin Number | SOT23-5 Pin Number | Pin Name | Description |
|---|---|---|---|
| 1 | 5 | VOUT | Output Voltage. When disabled the MIC5502 and MIC5504 switches on an internal 25Ω load to discharge the external capacitors. |
| 2 | 2 | GND | Ground. |
| 3 | 3 | EN | Enable Input: Active-High. High = ON; Low = OFF. For MIC5501 and MIC5502 do not leave floating. MIC5503 and MIC5504 have an internal pull-down and this pin may be left floating. |
| 4 | 1 | VIN | Supply Input. |
| — | 4 | NC | No Connection. Pin is not internally connected. |
| EP | — | ePAD | Exposed Heatsink Pad. Connect to GND for best thermal performance. |
TABLE 3-1: PIN FUNCTION TABLE
Electrical Characteristics
Absolute Maximum Ratings †
- Enable Voltage (VEN) –0.3V to VIN
- Power Dissipation (PD) Internally Limited, Note 1
- ESD Rating (Note 2) 3 kV
Absolute Maximum Ratings
- Enable Voltage (VEN) –0.3V to VIN
- Power Dissipation (PD) Internally Limited, Note 1
- ESD Rating (Note 2) 3 kV
Thermal Information
The MIC5501/2/3/4 are designed to provide 300 mA of continuous current in a very small package. Maximum ambient operating temperature can be calculated based on the output current and the voltage drop across the part. For example if the input voltage is 3.6V, the output voltage is 2.8V, and the output current is 300 mA. The actual power dissipation of the regulator circuit can be determined using Equation 4-1:
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| MIC5504 | — | — |
| MIC5504-1.0YMT-T5 | — | — |
| MIC5504-2.2YMT-TR | — | — |
| MIC5504-3.1YMT-TZ | — | — |
| MIC5504-X.XYMT | — | — |
| MIC5504/MT | — | — |
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