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MCP1603T-120I/MC Datenblatt(PDF) 6 Page - Microchip Technology |
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MCP1603T-120I/MC Datenblatt(HTML) 6 Page - Microchip Technology |
6 / 34 page MCP1603/B/L DS22042B-page 6 2007-2012 Microchip Technology Inc. Output Characteristics Adjustable Output Voltage Range VOUT 0.8 — 4.5 V Note 2 Reference Feedback Voltage VFB —0.8 — V Reference Feedback Voltage Tolerance -3.0 — +3.0 % TA = -40°C to +25°C -2.5 — +2.5 % TA = +25°C to +85°C Feedback Input Bias Current IVFB —0.1 — nA Output Voltage Tolerance Fixed VOUT -3.0% VR +3.0% % TA = -40°C to +25°C, Note 3 VOUT -2.5 VR +2.5 % TA = +25°C to +85°C, Note 3 Line Regulation VLINE-REG —0.3 — %/V VIN = VR + 1V to 5.5V, IOUT = 100 mA Load Regulation VLOAD-REG —0.35 — % VIN =VR +1.5V, ILOAD =100 mA to 500mA Internal Oscillator Frequency FOSC 1.5 2.0 2.8 MHz Start Up Time TSS —0.6 — ms TR = 10% to 90% RDSon P-Channel RDSon-P —500 — m IP =100 mA RDSon N-Channel RDSon-N —500 — m IN = 100 mA LX Pin Leakage Current ILX -1.0 ±0.1 1.0 µA SHDN =0V, VIN =5.5V, LX =0V, LX =5.5V Positive Current Limit Threshold +ILX(MAX) —860 — mA Note 6 TEMPERATURE SPECIFICATIONS Electrical Specifications: Unless otherwise indicated, all limits are specified for: VIN + 2.7V to 5.5V Parameters Sym Min Typ Max Units Conditions Temperature Ranges Operating Junction Temperature Range TJ -40 — +125 °C Steady State Storage Temperature Range TA -65 — +150 °C Maximum Junction Temperature TJ — — +150 °C Transient Package Thermal Resistances Thermal Resistance, 5L-TSOT JA — 207.4 — °C/W Typical 4-layer Board with Internal Ground Plane Thermal Resistance, 8L-2x3 DFN JA — 68 — °C/W Typical 4-layer Board with Internal Ground Plane and 2-Vias in Thermal Pad DC CHARACTERISTICS (CONTINUED) Electrical Characteristics: Unless otherwise indicated, MCP1603/L, VIN = SHDN = 3.6V, COUT = CIN = 4.7 µF, L = 4.7 µH, VOUT(ADJ) = 1.8V, IOUT =100 mA, TA = +25°C. Boldface specifications apply over the TA range of -40°C to +85°C. Parameters Sym Min Typ Max Units Conditions Note 1: The input voltage should be greater then the output voltage plus headroom voltage; higher load currents increase the input voltage required for regulation. MCP1603B device requires a minimum load for regulation. See Section 2.0, Typical Performance Curves for typical operating voltage ranges. 2: Reference Feedback Voltage Tolerance applies to adjustable output voltage setting. 3: VR is the output voltage setting. 4: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable temperature and the thermal resistance from junction to air (i.e. TA, TJ, JA). Exceeding the maximum allowable power dissipation causes the device to initiate thermal shutdown. 5: The internal MOSFET switches have an integral diode from the LX pin to the VIN pin, and from the LX pin to the GND pin. In cases where these diodes are forward-biased, the package power dissipation limits must be adhered to. Thermal protection is not able to limit the junction temperature for these cases. 6: The current limit threshold is a cycle-by-cycle peak current limit. |
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Ähnliche Beschreibung - MCP1603T-120I/MC |
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