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MCP1601 Datasheet(PDF) 3 Page - Microchip Technology |
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MCP1601 Datasheet(HTML) 3 Page - Microchip Technology |
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3 / 24 page  2003-2013 Microchip Technology Inc. DS21762B-page 3 MCP1601 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † VIN - AGND ......................................................................6.0V SHDN, FB, SYNC/PWM, VOUT ..... (AGND-0.3V) to (VIN+0.3V) LX to PGND................................................ -0.3V to (VIN+0.3V) PGND to AGND .................................................. -0.3V to +0.3V Output Short Circuit Current .................................continuous Storage temperature .....................................-65°C to +150°C Ambient Temp. with Power Applied ................-40°C to +85°C Operating Junction Temperature...................-40°C to +125°C ESD protection on all pins 4kV † Notice: Stresses above those listed under “Maximum rat- ings” 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. Expo- sure to maximum rating conditions for extended periods may affect device reliability. PIN FUNCTION TABLE NAME FUNCTION VIN Input Source Voltage SHDN Device Shutdown Pin FB Output Voltage Feedback Input AGND Analog Ground VOUT Sensed Output Voltage SYNC/PWM Synchronous Clock input or PWM/ PFM select PGND Power Ground LX Output Inductor Node ELECTRICAL SPECIFICATIONS Electrical Specifications: Unless otherwise indicated, VIN=4.2V, VOUT=1.8V, ILOAD = 10 mA, TA=-40°C to +85°C. Parameters Sym Min Typ Max Units Conditions Power Input Requirements Voltage VIN 2.7 — 5.5 V ILOAD = 0 mA to 500 mA Shutdown Current I(VIN) — 0.05 1.0 µA Shutdown Mode (SHDN = GND) PFM Mode Current I(VIN) — 119 180 µA SYNC/PWM = GND, PFM Mode (ILOAD = 0 mA) Oscillator Section Internal Oscillator Frequency FOSC 650 750 850 kHz SYNC/PWM = VIN External Oscillator Capture Range FSYNC 850 — 1000 kHz FSYNC > FOSC External Oscillator Duty Cycle FSYN-FALL 10 — 90 % FSYNC = 1 MHz Internal Power Switches RDSon P-CHANNEL RDSon-P — 500 — m IP=100 mA, TA=+25°C, VIN=4.2V RDSon N-CHANNEL RDSon-N — 500 — m IN=100 mA, TA=+25°C, VIN =4.2V Dropout Voltage VDROPOUT — 250 — mV VOUT = 2.7V, ILOAD = 300 mA, TA=+25°C, VDROPOUT=97%VOUT Pin Leakage Current ILX -1.0 — 1.0 µA SHDN = 0V, VIN = 5.5V, LX = 0V, LX = 5.5V Output PWM Mode Peak Current Limit IPEAK-PWM — 1.0 — A PWM Mode, SYNC/PWM = VIN, TA = +25°C Output Voltage Output Voltage Range VOUT 0.9 — VIN V Reference Feedback Voltage VFB 0.78 0.8 0.82 V Feedback Input Bias Current IVFB —0.1 — nA Line Regulation VLINE-REG —0.1 — %/V VIN=2.7V to 5.5V, ILOAD=10 mA Load Regulation VLOAD-REG —1.5 — % VIN = 3.6V, ILOAD = 0 mA to 300 mA Start-Up Time TSTART — 0.5 — ms PWM Mode, SYNC/PWM=VIN |
Similar Part No. - MCP1601_13 |
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Similar Description - MCP1601_13 |
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