MCP1755ST-1802E/DB

Part: MCP1755/MCP1755S — Microchip Technology Inc.

Type: Low-Dropout (LDO) voltage regulator

Description: The MCP1755/MCP1755S is a CMOS Low-Dropout (LDO) voltage regulator that can deliver up to 300 mA of current while consuming only 68.0 μA of quiescent current, with an input operating range of 3.6V to 16.0V and output voltage tolerance of ±2.0% over -40°C to +125°C.

Operating Conditions:

• Supply voltage: 3.6V to 16.0V
• Operating temperature: -40°C to +125°C
• Output voltage range: 1.8V to 5.5V

Absolute Maximum Ratings:

• Max supply voltage: +17.6V
• Max continuous current: 300 mA
• Max junction/storage temperature: +165°C (Junction), -55°C to +150°C (Storage)

Key Specs:

• Input Operating Voltage: 3.6V to 16.0V
• Maximum Output Current: 300 mA
• Input Quiescent Current: 68 μA (Typ) at I L = 0 mA
• Dropout Voltage: 300 mV (Typ) at I L = 300 mA
• Output Voltage Regulation: V R ±2.0% (Max)
• Line Regulation: ±0.01 %/V (Typ) for V R + 1V ≤ V IN ≤ 16V
• Load Regulation: ±0.1 % (Typ) for I L = 1.0 mA to 300 mA
• Power Supply Ripple Rejection Ratio (PSRR): 80 dB (Typ) at f = 1 kHz, I L = 100 mA

Features:

• High PSRR: >70 dB @ 1 kHz, Typical
• 68.0 μA Typical Quiescent Current
• Input Operating Voltage Range: 3.6V to 16.0V
• 300 mA Output Current for all Output Voltages
• Low-Dropout Voltage, 300 mV typical @ 300 mA
• Standard Output Voltage Options (1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V)
• Output Voltage Range: 1.8V to 5.5V in 0.1V Increments (tighter increments are also possible per design)
• Output Voltage Tolerances of ±2.0% Over Entire Temperature Range
• Stable with Minimum 1.0 μF Output Capacitance
• Power Good Output
• Shutdown Input
• True Current Foldback Protection
• Short-Circuit Protection
• Overtemperature Protection
• The MCP1755/MCP1755S Devices Pass the Automotive AEC-Q100 Reliability Testing

Applications:

• Battery-Powered Devices
• Battery-Powered Alarm Circuits
• Smoke Detectors
• CO2 Detectors
• Pagers and Cellular Phones
• Smart Battery Packs
• Portable Digital Assistant (PDA)
• Digital Cameras
• Microcontroller Power
• Consumer Products
• Battery-Powered Data Loggers

Package:

• SOT-23-5
• SOT-223-5
• 8-lead 2 x 3 DFN
• SOT-223-3

• High PSRR: >70 dB @ 1 kHz, Typical
• 68.0 μA Typical Quiescent Current
• Input Operating Voltage Range: 3.6V to 16.0V
• 300 mA Output Current for all Output Voltages
• Low-Dropout Voltage, 300 mV typical @ 300 mA
• Standard Output Voltage Options (1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V)
• Output Voltage Range: 1.8V to 5.5V in 0.1V Increments (tighter increments are also possible per design)
• Output Voltage Tolerances of ±2.0% Over Entire Temperature Range
• Stable with Minimum 1.0 μF Output Capacitance
• Power Good Output
• Shutdown Input
• True Current Foldback Protection
• Short-Circuit Protection
• Overtemperature Protection
• The MCP1755/MCP1755S Devices Pass the Automotive AEC-Q100 Reliability Testing

• Battery-Powered Devices
• Battery-Powered Alarm Circuits
• Smoke Detectors
• CO2 Detectors
• Pagers and Cellular Phones
• Smart Battery Packs
• Portable Digital Assistant (PDA)
• Digital Cameras
• Microcontroller Power
• Consumer Products
• Battery-Powered Data Loggers

The descriptions of the pins are listed in Table 3-1 and Table 3-2.

Electrical Specifications: Unless otherwise specified, all limits are established for V IN = V R + 1V (1) , I LOAD = 1 mA, COUT = 1 μF (X7R), C IN = 1 μF (X7R), T A = +25°C, t r(VIN) = 0.5 V/μs, SHDN = V IN , PWRGD = 10K to V OUT . Boldface type applies for Junction Temperatures, T J of -40°C to +125°C. (7)

Note 1: The minimum V IN must meet two conditions: V IN 3.6V and V IN VR + V DROPOUT(MAX) .

• 2: VR is the nominal regulator output voltage when the input voltage, V IN = V Rated + V DROPOUT(MAX) or V IN = 3.6V (whichever is greater); I OUT = 1 mA.
• 3: TCVOUT = (V OUT-HIGH - V OUT-LOW ) x 10 6 /(V R x Temperature ), V OUT-HIGH = highest voltage measured over the temperature range. V OUT-LOW = lowest voltage measured over the temperature range.
• 4: Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output voltage due to heating effects are determined using thermal regulation specification, TCV OUT .
• 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below the output voltage value that was measured with an applied input voltage of V IN = V R + 1V or V IN = 3.6V (whichever is greater).
• 6: 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., T A , T J , JA ). Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +150°C rating. Sustained junction temperatures above +150°C can impact device reliability.
• 7: The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the desired junction temperature. The test time is small enough such that the rise in the junction temperature over the ambient temperature is not significant.
• 8: See Section 4.6 'Shutdown Input (SHDN)' and Figure 2-34.

† Notice: Stresses above those listed under '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 listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

• V IN , PWRGD, SHDN................. (GND - 0.3V) to (V IN + 0.3V)
• V OUT ................................................. (GND - 0.3V) to (+5.5V)
• Internal Power Dissipation .............Internally Limited (Note 6)
• Output Short-Circuit Current .................................Continuous
• Storage Temperature ....................................-55°C to +150°C
• Maximum Junction Temperature...................+165°C (Note 7)
• Operating Junction Temperature...................-40°C to +150°C
• ESD Protection on All Pins 3 kV HBM and 400V MM