MIC5306-2.6YD5

MIC5306 150 mA Micropower μCap Baseband LDO Features General Description • • • • • The MIC5306 is a micropower, μCap low dropout regulator designed for optimal performance in a small space. It is capable of sourcing 150 mA of output current and only draws 16 μA of operating current. This high performance LDO offers fast transient response and good PSRR while consuming a minimum of current. Input Voltage Range: 2.25V to 5.5V Ultra-Low IQ: Only 16 μA Operating Current Stable with Ceramic Output Capacitors Low Dropout Voltage of 45 mV @ 100 mA High Output Accuracy: - ±1.0% Initial Accuracy - ±2.0% over Temperature • Thermal Shutdown Protection • Current Limit Protection Applications • • • • • • Digital Logic Power Supply Stand-By Power Supply Cellular Phones PDAs Portable Electronics Notebook PCs Ideal for battery operated applications; the MIC5306 offers 1% accuracy, extremely low dropout voltage (45 mV @ 100 mA). Equipped with a TTL logic compatible enable pin, the MIC5306 can be put into a zero-off-mode current state, drawing no current when disabled. The MIC5306 is a μCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost. The MIC5306 is available in fixed output voltages in Thin SOT23-5 packaging. Package Type MIC5306 5-Lead Thin SOT-23 (D5) (Top View) EN GND VIN 1 2 3 4 NC  2020 Microchip Technology Inc. 5 OUT DS20006304A-page 1 MIC5306 Typical Application Circuit MIC5306 VIN 1μF VOUT EN 1μF GND Applications Co-processor Functional Block Diagram VIN OUT EN 1.25V Reference GND DS20006304A-page 2  2020 Microchip Technology Inc. MIC5306 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Supply Input Voltage (VIN) ................................................................................................................................ 0V to +6V Enable Input Voltage (VEN) ............................................................................................................................... 0V to +6V Power Dissipation (PD) ............................................................................................................Internally Limited (Note 1) Operating Ratings †† Supply Input Voltage (VIN) ...................................................................................................................... +2.25V to +5.5V Enable Input Voltage (VEN1/EN2/LOWQ)............................................................................................................... 0V to VIN † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. †† Notice: The device is not guaranteed to function outside its operating ratings. Note 1: The maximum allowable power dissipation of any TA (ambient temperature) is PD(MAX) = TJ(MAX) – TA/θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. ELECTRICAL CHARACTERISTICS Electrical Characteristics: VIN = VOUT + 1.0V; COUT = 1.0 μF, IOUT = 100 μA; TJ = +25°C, bold values indicate –40°C to +125, unless noted. Parameter Output Voltage Accuracy Sym. VOUT Min. Typ. Max. VR – 1% — VR + 1% VR – 2% — VR + 2% 0.01 0.3 ΔVOUT/ (VOUT x ΔVIN) — Line Regulation — — 0.5 Load Regulation ΔVOUT/ VOUT — 0.5 1.0 — — 1.5 — 25 — — 45 — — 65 200 Dropout Voltage, Note 1 VDO Units Conditions Variation from nominal VOUT V %/V % Variation from nominal VOUT; –40°C to +125°C VIN = VOUT + 1V to 5.5V — IOUT = 100 μA to 150 mA IOUT = 50 mA mV IOUT = 100 mA IOUT = 150 mA Ground Pin Current IGND — 16 30 μA IOUT = 0 mA to 150 mA; VIN = 5.5V Ground Pin Current in Shutdown ISHDN — 0.01 1 μA VEN ≤ 0.2V; VIN = 5.5V — 62 — — 35 — 175 285 500 Ripple Rejection PSRR Current Limit Note 1: 2: ILIM dB mA f = 10 Hz to 1 kHz; COUT = 1 μF; IOUT = 150 mA f = 20 kHz; COUT = 1 μF; IOUT = 150 mA VOUT = 0V Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. For outputs below 2.25V, dropout voltage is the input-to-output differential with the minimum input voltage 2.25V. Turn-on time is measured from VEN = 1V of the positive edge of the enable signal to 90% of the rising edge of the output voltage of the regulator.  2020 Microchip Technology Inc. DS20006304A-page 3 MIC5306 ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Characteristics: VIN = VOUT + 1.0V; COUT = 1.0 μF, IOUT = 100 μA; TJ = +25°C, bold values indicate –40°C to +125, unless noted. Parameter Sym. Min. Typ. Max. Units Thermal Shutdown TSD — 150 — °C — Thermal Shutdown Hysteresis ΔTSD — 15 — °C — eN — 91 — — — 0.2 1 — — — 0.01 1 — 0.01 1 — 250 500 Output Voltage Noise Conditions μVRMS COUT = 1 μF; 10 Hz to 100 kHz Enable Input Enable Input Voltage VEN Enable Input Current IEN Turn-On Time, Note 2 tON Note 1: 2: Logic low V Logic high VIL ≤ 0.2V μA VIH ≥ 1.0V μs COUT = 1 μF Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. For outputs below 2.25V, dropout voltage is the input-to-output differential with the minimum input voltage 2.25V. Turn-on time is measured from VEN = 1V of the positive edge of the enable signal to 90% of the rising edge of the output voltage of the regulator. TEMPERATURE SPECIFICATIONS Parameters Sym. Min. Typ. Max. Units Conditions Junction Temperature Range TJ –40 — +125 °C Storage Temperature Range TS –65 — +150 °C — Lead Temperature — — +260 — °C Soldering, 5 sec. θJA — 235 — °C/W Temperature Ranges — Package Thermal Resistance Thermal Resistance, TSOT-23 5-Ld Note 1: — The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +125°C rating. Sustained junction temperatures above +125°C can impact the device reliability. DS20006304A-page 4  2020 Microchip Technology Inc. MIC5306 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. -80 -60 100μA -40 -30 -20 VOUT = 2.8V -10 VIN = VOUT + 1V COUT = 1μF 0 0.01 0.1 1 10 100 1000 FREQUENCY (kHz) GROUND CURRENT (μA) FIGURE 2-1: 20 18 16 14 12 10 8 6 4 2 0 0 FIGURE 2-2: Output Current. Ripple Rejection. VOUT = 2.8V VIN = VOUT + 1V COUT = 1μF Ground Pin Current vs. 8 6 4 VOUT = 2.8V COUT = 1μF 2 2.5 3 3.5 4 4.5 5 5.5 SUPPLY VOLTAGE (V) Ground Pin Current vs. 150mA 100μA VOUT = 2.8V VIN = VOUT + 1V COUT = 1μF Ground Pin Current vs.  2020 Microchip Technology Inc. 70 60 50 40 30 20 10 FIGURE 2-5: Current. DROPOUT VOLTAGE (mV) GROUND CURRENT (μA) 10 0 0 20 40 60 80 100 120 140 OUTPUT CURRENT (mA) 2 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) FIGURE 2-3: Temperature. 100μA 12 80 14 12 10 8 6 4 14 FIGURE 2-4: Supply Voltage. 20 18 16 150mA 16 0 2 DROPOUT VOLTAGE (mV) dB -50 GROUND CURRENT (uA) 18 150mA -70 100 90 80 VOUT = 2.8V VIN = VOUT + 1V COUT = 1μF 20 40 60 80 100 120 140 OUTPUT CURRENT (mA) Dropout Voltage vs. Output 150mA 70 60 50 40 30 100mA 50mA 25mA 20 10 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) FIGURE 2-6: Temperature. Dropout Voltage vs. DS20006304A-page 5 MIC5306 350 OUTPUT CURRENT (mA) OUTPUT VOLTAGE (V) 3 2.5 150mA 2 100μA 1.5 1 0.5 0 0 VOUT = 2.8V COUT = 1μF 300 250 200 150 100 Output Voltage vs. Supply FIGURE 2-10: Voltage. ENABLE THRESHOLD (V) OUTPUT VOLTAGE (V) 3.4 3.2 3 2.8 2.6 2.4 2.2 VOUT = 2.8V VIN = VOUT + 1V COUT = 1μF IOUT = 100μA 2 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) FIGURE 2-8: Temperature. Output Voltage vs. VOUT = 2.8V COUT = 1μF 0 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 SUPPLY VOLTAGE (V) 1 2 3 4 5 SUPPLY VOLTAGE (V) FIGURE 2-7: Voltage. 50 Current Limit vs. Supply 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) FIGURE 2-11: Temperature. Enable Threshold vs. Enable Voltage (1V/div) 1E+01 1E-00 1E-01 VOUT = 2.8V VIN = 3.8V COUT = 1μF ROUT Ÿ 1E-02 0.01 0.1 1 10 100 1000 10000 )5(48(1&1V) enables the regulator. EN is compatible with CMOS logic gates. If the enable/shutdown feature is not required, connect EN (pin 3) to VIN (supply input, pin 1). 4.4 Current Limit There is overcurrent protection circuitry built into the MIC5306. Even with the output grounded, current will be limited to approximately 285 mA. Further protection is provided by thermal shutdown. 4.5 Thermal Considerations The MIC5306 is designed to provide 150 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. Given that the input voltage is 3.8V, the output voltage is 2.8V and the output current equals 150 mA. Because this device is CMOS and the ground current is typically