MCP1755ST-1802E/DB

Part: MCP1755T-3302E/DC — Microchip Technology Inc.

Type: Low-Dropout (LDO) Linear Voltage Regulator

Description: 300 mA, 3.6–16 V input CMOS LDO with 68 μA typical quiescent current, 300 mV typical dropout at 300 mA, and ±2.0% output tolerance over temperature.

Operating Conditions:

• Input voltage: 3.6–16.0 V
• Specified temperature range (TA): -40 to +125 °C
• Output voltage range: 1.8–5.5 V (the -3302 option is a 3.3 V output)
• Maximum output current: 300 mA

Absolute Maximum Ratings:

• Max input voltage (VIN): +17.6 V
• Max junction temperature: +165 °C
• Storage temperature: -55 to +150 °C
• Output short-circuit current: continuous

Key Specs:

• Quiescent current: 68 μA typical, 100 μA max (IL = 0 mA)
• Shutdown current: 0.1 μA typical, 4 μA max (SHDN = GND)
• Output voltage accuracy: VR -2.0% to VR +2.0% (typical VR +0.85%)
• Dropout voltage: 300 mV typical, 500 mV max (IL = 300 mA)
• Line regulation: ±0.01%/V typical (VR + 1 V ≤ VIN ≤ 16 V)
• Load regulation: ±0.1% typical, ±0.5% max (IL = 1 to 300 mA)
• PSRR: 80 dB typical (1 kHz, IL = 100 mA, VR = 5 V)
• Output noise: 0.3 μV/√Hz typical (IL = 50 mA, f = 1 kHz)
• UVLO: 3.0 V typical on rising VIN, 300 mV hysteresis
• Thermal shutdown: 150 °C typical, 10 °C hysteresis
• Foldback short-circuit current: 30 mA typical

Features:

• True current foldback protection, short-circuit protection and overtemperature protection
• Power Good output
• Shutdown input
• Stable with a minimum 1 μF output capacitor (ceramic, tantalum or aluminum electrolytic)
• Output voltages from 1.8 V to 5.5 V in 0.1 V increments
• AEC-Q100 reliability testing passed

Applications:

• Battery-powered devices and data loggers
• Smoke and CO2 detectors, alarm circuits
• Pagers and cellular phones
• Smart battery packs
• PDAs and digital cameras
• Microcontroller power
• Consumer products

Package:

• SOT-23-5 (MCP1755)
• SOT-223-5 (MCP1755)
• 8-lead 2 x 3 DFN (MCP1755 and MCP1755S)
• SOT-223-3 (MCP1755S)

• 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.