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MCP1253 Datasheet(PDF) 3 Page - Microchip Technology |
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MCP1253 Datasheet(HTML) 3 Page - Microchip Technology |
3 / 20 page 2002-2013 Microchip Technology Inc. DS21752B-page 3 MCP1252/3 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Power Supply Voltage, VIN...............................................6.0V Voltage on Any Pin w.r.t. GND ............... -0.3V to (VIN + 0.3V) Output Short Circuit Duration ................................continuous Storage Temperature Range .........................-65°C to +150°C Ambient Temperature with Power Applied ....-55°C to +125°C Junction Temperature ................................................. +150°C ESD Ratings: Human Body Model (1.5 k in Series with 100 pF 4kV Machine Body Model (200 pF, No Series Resistance 400V †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 ELECTRICAL CHARACTERISTICS Name Function PGOOD Open-Drain Power GOOD Output VOUT Regulated Output Voltage VIN Power Supply Input GND Ground Terminal C- Flying Capacitor Negative Terminal C+ Flying Capacitor Positive Terminal SHDN Shutdown Mode, Active-Low Input SELECT Output Voltage Select Pin. (MCP1252-33X50, MCP1253-33X50) FB Feedback Input Pin for Adjustable Output (MCP1252-ADJ, MCP1253-ADJ) Electrical Specifications: Unless otherwise specified, all limits are specified for TA = -40°C to +85°C, SHDN = VIN, CIN = COUT = 10 µF, CFLY = 1 µF, IOUT = 10 mA. Typical values are for TA = +25°C. Parameters Sym Min Typ Max Units Conditions Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = VIN, VOUT = 3.3V Supply Voltage VIN 2.1 — 5.5 V Output Voltage Accuracy VOUT -2.5 +/-0.5 +2.5 % 2.3V V IN < 2.5V, IOUT 80 mA 2.5V V IN 5.5V, IOUT120 mA Output Current IOUT 80 120 100 150 —mA mA 2.3V V IN < 2.5V 2.5V V IN 5.5V SELECT Logic Input Voltage High VIH 1.4 — — V MCP1252-33X50, MCP1253-33X50 Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = GND, VOUT = 5.0V Supply Voltage VIN 2.7 — 5.5 V Output Voltage Accuracy VOUT -2.5 +/-0.5 +2.5 % 2.7V V IN < 3.0V, IOUT 40 mA 3.0V V IN5.5V, IOUT120 mA Output Current IOUT 40 120 80 150 —mA mA 2.7V V IN < 3.0V 3.0V V IN 5.5V SELECT Logic Input Voltage Low VIL — — 0.4 V MCP1252-33X50, MCP1253-33X50 Adjustable Output - MCP1252-ADJ, MCP1253-ADJ Supply Voltage VIN 2.0 — 5.5 V Output Voltage Adjustment Range VOUT 1.5 — 5.5 V VOUT(MAX) < 2 x VIN FB Regulation Voltage VFB 1.18 1.21 1.24 V MCP1252-ADJ, MCP1253-ADJ ALL DEVICES Supply Current IDD — 60 120 µA No load Output Short-Circuit Current ISC — 200 — mA VOUT = GND, foldback current Shutdown Current ISHDN — 0.1 2.0 µA SHDN = 0V Power Efficiency —81 68 —% % VIN = 3.0V, VOUT = 5V VIN = 3.6V, VOUT = 5V IOUT =120 mA SHDN Logic Input Voltage Low VIL —— 0.4 V SHDN Logic Input Voltage High VIH 1.4 — — V PGOOD Threshold Voltage VTH — 0.93VOUT —V PGOOD Hysteresis VHYS — 0.04VOUT —V |
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