LMR70503TMX/NOPB Power Regulator IC Switching Voltage Regulators SIMPLE SWITCHER Nano Reg w/ Adj Vout
digital voltage regulator ic
,electronic voltage regulator circuit
LMR70503TMX/NOPB Power Regulator IC Switching Voltage Regulators SIMPLE SWITCHER Nano Reg w/ Adj Vout
FEATURES
- Tiny 8-Bump Thin DSBGA Package: 0.84 mm × 1.615 mm × 0.6 mm
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2.8 V to 5.5 V Input Voltage Range
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Adjustable Output Voltage: -0.9 V to -5.5 V
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320 mA Switch Current Limit
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500 kHz Minimum Switching Frequency
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Ground Referred Enable Input
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Under Voltage Lock Out (UVLO)
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No External Compensation
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Internal Soft Start
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1 μA Shutdown Supply Current
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Small Output Voltage Ripple
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WEBENCH® Enabled
APPLICATIONS
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General Purpose Negative Voltage Supply
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Negative Rail / Bias Supply For Op-amp And Data Converters
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LCD Biasing PERFORMANCE BENEFITS
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Easy To Use
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Tiny Overall Solution Size Reduces System Cost
DESCRIPTION
The LMR70503 is a buck-boost converter with adjustable negative output voltage in a tiny 8-bump thin DSBGA package. Its unique control method is designed to provide fast transient response, low output noise, high efficiency, and tight regulation in the smallest possible PCB area. The LMR70503 has built in soft start, peak current limit, minimum switching frequency, and Under Voltage Lock Out (UVLO), with no external compensation required. For ease of use, the Enable pin is referred to the IC ground, instead of the lowest potential of the IC: the negative output voltage.
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