Board/Board-DAT.md
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battery holder - [[OPM1189-dat]]
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+battery drainer - [[OPM1133-dat]] - [[OPM1134-dat]]
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### OPS
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- [[OPS1009-DAT]]
Board/OPM/OPM1133-dat/OPM1133-dat.md
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# OPM1133-dat
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+## Chip Features
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+
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+- low noise, 150mA, 1.8-5V->3.3V
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+- quiescent current 1.77mA
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## Board Dimension
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+
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+## Updated to R2:
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+Added EN enable pin of the chip
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+EN default pull up to high level, connected by jumper VIN.
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+Set EN to low level, can simply connect to battery ground to shut power down, for power saving.
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+
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+
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## Testing for reference:
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- 1.8V VIN -> 3.3V output
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- 1.5V VIN -> 3.1xV output, still can drive a lot MCUs.
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+## Applications
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+
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+- 2 AA Cell to 3.3V, tested can also get 3.2x V from a full 1.5V AA battery.
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+- USB On-The-Go Devices
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+- White LED Driver
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+- Handheld Devices
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+
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+
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## ref
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- [[battery-drainer-dat]]
Board/OPM/OPM1134-dat/2023-10-09-14-55-33.png
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Board/OPM/OPM1134-dat/OPM1134-dat.md
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+
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+# OPM1134-dat
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+
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+![](2023-10-09-14-55-33.png)
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+
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+
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+## Chip Features:
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+- Maximum efficiency: 95%
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+- Maximum working frequency: 300 KHz
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+- Low quiescent current: 15uA
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+- Optional output voltage: 2.5V ～ 3.6V
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+- Output accuracy: ± 2.5%
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+- Wide input voltage range: 0.9V ～ 3.6V
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+- Low ripple and low noise
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+
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+
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+
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+## Applications
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+
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+- Electronic equipment with 1 to 2 AA/AAA batteries
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+- Electronic dictionaries, digital cameras, LED flashlights, LED lights, blood pressure monitors, MP3s, remote control toys, wireless headsets, wireless mice and keyboards, medical equipment, anti-lost devices, car alarms, chargers, VCRs, PDAs and other handheld electronic devices
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+
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+
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+
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+## ref
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+- [[battery-drainer-dat]], demo video here.
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+
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+- [[battery-drainer]]
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