MIC5504/MT
Single Output LDOThe MIC5504/MT is a single output ldo from Micrel. View the full MIC5504/MT datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Micrel
Category
Single Output LDO
Package
4-Lead 1.0 mm x 1.0 mm Thin D
Overview
Part: MIC5501/2/3/4 — Microchip Type: Single Output LDO Description: A family of 2.5–5.5 V input, 300 mA single output LDOs with 2% initial accuracy, low dropout voltage (160 mV at 300 mA), and low quiescent current (38 μA), available in ultra-small 1 mm x 1 mm DFN and SOT23 packages.
Operating Conditions:
- Supply voltage: +2.5V to +5.5V
- Operating temperature: -40°C to +125°C
- Fixed Output Voltages from 1.0V to 3.3V
Absolute Maximum Ratings:
- Max supply voltage: +6V
- Max junction temperature: +150°C
Key Specs:
- Output Voltage Accuracy: ±2.0% (at T J = +25°C)
- Output Voltage Accuracy: ±3.0% (at -40°C to +125°C)
- Dropout Voltage: 160 mV (Typ, at I OUT = 300 mA)
- Ground Pin Current: 38 μA (Typ, at I OUT = 0 mA)
- Ground Pin Current in Shutdown: 0.05 μA (Typ, at V EN = 0V)
- Current Limit: 400 mA (Min, at V OUT = 0V)
- Ripple Rejection (PSRR): 60 dB (Typ, at f = 1 kHz)
- Turn-On Time: 50 μs (Typ, at C OUT = 1 μF; I OUT = 150 mA)
Features:
- 300 mA Ensured Output Current
- 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 Ultra Thin DFN
- 5-Lead SOT23
Features
- Input Voltage Range: 2.5V to 5.5V
- Fixed Output Voltages from 1.0V to 3.3V
- 300 mA Ensured 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 Ultra 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.
TABLE 3-1: PIN FUNCTION TABLE
| 4-Lead UDFN 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. |
Electrical Characteristics
Electrical Characteristics: V IN = V EN = V OUT + 1V; C IN = C OUT = 1 μF; I OUT = 100 μA; T J = +25°C, bold values indicate -40°C to +125°C, unless noted.
| Parameter | Symbol | Min. | Typ. | Max. | Units | Conditions |
|---|---|---|---|---|---|---|
| Output Voltage Accuracy | V OUT | -2.0 | - | 2.0 | % | Variation from nominal V OUT |
| Output Voltage Accuracy | V OUT | -3.0 | - | 3.0 | % | Variation from nominal V OUT ; -40°C to +125°C |
| Line Regulation | - | - | 0.02 | 0.3 | %/V | V IN = V OUT +1V to 5.5V; I OUT = 100 μA |
| Load Regulation (Note 1) | - | - | 8 | 40 | mV | I OUT = 100 μA to 300 mA |
| Dropout Voltage (Note 2) | V DO | - | 80 | 190 | mV | I OUT = 150 mA |
| Dropout Voltage (Note 2) | V DO | - | 160 | 380 | mV | I OUT = 300 mA |
| Ground Pin Current (Note 3) | I GND | - | 38 | 55 | μA | I OUT = 0 mA |
| Ground Pin Current (Note 3) | I GND | - | 42 | 65 | μA | I OUT = 300 mA |
| Ground Pin Current in Shutdown | I GND(SHDN) | - | 0.05 | 1 | μA | V EN = 0V |
| Ripple Rejection | PSRR | - | 60 | - | dB | f = 1 kHz; C OUT = 1 μF |
| Current Limit | I LIM | 400 | 630 | 900 | mA | V OUT = 0V |
| Output Voltage Noise | e n | - | 175 | - | μV RMS | C OUT = 1 μF, 10 Hz to 100 kHz |
| Auto-Discharge NFET Resistance | - | - | 25 | - | Ω | MIC5502, MIC5504 Only; V EN = 0V; V IN = 3.6V; I OUT = -3 mA |
| Enable Input | Enable Input | Enable Input | Enable Input | Enable Input | Enable Input | Enable Input |
| Enable Pull-Down Resistor | - | - | 4 | - | MΩ | For MIC5503 and MIC5504 use only |
| Enable Input Voltage | V EN | - | - | 0.2 | V | Logic-Low |
| Enable Input Voltage | V EN | 1.2 | - | - | V | Logic-High |
Absolute Maximum Ratings
Supply Voltage (V IN ) ..................................................................................................................................... -0.3V to +6V
Enable Voltage (V EN ) ..................................................................................................................................... -0.3V to V IN
Power Dissipation (P D ) ............................................................................................................. 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:
Typical Application
Package Information
| Units | MILLIMETERS | MILLIMETERS | MILLIMETERS | |
|---|---|---|---|---|
| Dimension Limits | Dimension Limits | MIN | NOM | MAX |
| Contact Pitch | E | 0.65 BSC | ||
| Center Pad Width | X2 | 0.48 | ||
| Center Pad Length | Y2 | 0.48 | ||
| Contact Pad Spacing | C | 0.90 | ||
| Contact Pad Width (X4) | X1 | 0.25 | ||
| Contact Pad Length (X3) | Y1 | 0.40 | ||
| Terminal 1 Pad Length | Y3 | 0.47 | ||
| Contact Pad Chamfer (X3) | CH | 0.18 | ||
| Thermal Via Diameter | V | 0.30 |
Microchip Technology Drawing C04-3149 Rev A
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| MIC5504 | Micrel | SOT23 |
| MIC5504-3.3YM5 | Micrel | DFN-4 (1x1mm) |
| MIC5504-X.XYMT | Micrel | — |
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