U211B IC
U211B IC
Make – VISHAY
Feature
- Internal Frequency-to-voltage Converter
- Externally Controlled Integrated Amplifier
- Overload Limitation with “Fold Back” Characteristic
- Optimized Soft-start Function
- Tacho Monitoring for Shorted and Open Loop
- Automatic Retriggering Switchable
- Triggering Pulse Typically 155 mA
- Voltage and Current Synchronization
- Internal Supply-voltage Monitoring
- Temperature Reference Source
- Current Requirement ≤3 mA
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LM329DZ
ICMake - TI
Feature
- 2• VOUT_RANGE
- V to 4.5 V DC-DC
- VOUT_APT = 0.4 V to 3.81 V (or VIN – 200 mV) • DC BOOST FOR ET OPERATION: – Boost Input Voltage Range: 2.5 V to 5 V – High-Efficiency (90% typical) with Internal Synchronous Rectification : – 2.7 MHz PWM Switching Frequencies • BUCK DC-DC FOR APT AND ET OPERATION: – High Operating Frequency – VOUT_RANGE = 0.6 V to min of 3.81 V VIN – 200 mV 2. In ET mode – High-Efficiency (95% typical) – Low-Power PFM Mode • LM3291 CONTROL: – Automatic Control of LM3291 in ET Mode • RFFE CONTROL INTERFACE: – 1.8 V MIPI – 26 MHz Write Capability – 13 MHz Read Capability
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