lm2773tlx National Semiconductor Corporation, lm2773tlx Datasheet
lm2773tlx
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lm2773tlx Summary of contents
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... LM2773 automatically switches to a low- ripple PFM regulation mode to maintain high efficiency over the entire load range. The LM2773 is available in National’s 0.5mm pitch 9-bump Micro-SMD (µSMD-9). Typical Application Circuit © 2008 National Semiconductor Corporation Features ■ Low-Noise Spread Spectrum Operation ■ 1.8V/1.6V Selectable Output Voltage ■ ...
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... C1- C3 C2+ Order Information Output Voltages Order Number 1.8V/1.6V LM2773TL 1.8V/1.6V LM2773TLX www.national.com 9-Bump Micro SMD (µSMD-9) NS Package Number TLA9ZZA, 0.5mm Pitch 1.511mm x 1.511mm x 0.6mm Flying Capacitor 2: Negative Terminal Output Voltage Flying Capacitor 1: Positive Terminal Ground Device Enable. Logic HIGH: Enabled, Logic LOW: Shutdown. ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V Pin Voltage IN EN, SEL Pin Voltage Continuous Power Dissipation (Note 4) Junction Temperature (T ) J-MAX Storage ...
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Note 4: Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages =140°C (typ.). J Note 5: The Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. MIL-STD-883 ...
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Typical Performance Characteristics C = 4.7µF, V(EN) = 1.8V, V(SEL) = 0V, T OUT Output Voltage vs. Input Voltage, 1.8V Mode Output Voltage vs. Output Current, 1.8V Mode Unless otherwise specified 25°C. Capacitors are low-ESR multi-layer ceramic capacitors ...
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Efficiency vs. Input Voltage, 1.8V Mode Shutdown Supply Current Line Step 3.0V to 4.2V with Load = 300mA, 1.8V Mode CH1 Scale: 1V/Div, DC Coupled IN CH2 Scale: 20mV/Div, AC Coupled OUT Time scale: 10ms/Div www.national.com ...
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Load Step 0mA to 300mA 3.6V, 1.8V Mode IN CH2 Scale: 100mV/Div, DC Coupled, Offset 1.834V OUT CH4 Scale: 100mA/Div OUT Time scale: 4ms/Div Load Step 0mA to 300mA 3.6V, 1.6V Mode ...
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Operation Description OVERVIEW The LM2773 is a switched capacitor converter that produces a selectable 1.8V or 1.6V regulated output. The core of the part is a highly efficient charge pump that utilizes fixed fre- quency pre-regulation, Pulse Frequency Modulation, and ...
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Z5U: +22%, -56% over +10°C to +85°C range). Under some conditions, a 1µF- rated Y5V or Z5U capacitor could have a capacitance as low as ...
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TABLE 1. LM2773 Performance with Different Capacitor Configurations, 1.8V Mode (Note 14) CAPACITOR CONFIGURATION (V = 3.6V 1µ 4.7µF, OUT 1µ 1µ 2.2µF, ...
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Physical Dimensions inches (millimeters) unless otherwise noted TLA09ZZA: 9-Bump Micro-SMD Package x1: 1.511mm x2: 1.511mm x3: 0.6mm 11 www.national.com ...
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