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ADM8828ARTZ
+BOMADI Charged pump inverter w/shut down I.C.
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ManufacturerAnalog Devices
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Mfr. Part #ADM8828ARTZ
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In Stock15446
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Specifications
| Attribute | Value |
| Packaging | Reel |
| StandardPackQty | 3000 |
Overview
Description
Key features:
- Compact SOT-23 package (space-saving).
- No external diodes required (integrated charge pump).
- Fixed -Vin output (inverts input voltage).
- Low quiescent current (120µA typical).
Applications include biasing sensors, op-amps, and LCD displays. Its simplicity and small footprint make it ideal for portable and battery-powered devices.
For stable operation, a 1µF flying capacitor and 1µF output capacitor are recommended.
Equivalent
- MAX882 (Maxim Integrated)
- LTC1044 (Analog Devices)
- TC1044S (Microchip)
- ICL7660 (Intersil/Renesas)
These chips perform similar voltage inversion functions with slight variations in specs like current output or efficiency. Always check datasheets for exact compatibility.
Features
- Input Voltage Range: 1.5V to 5.5V
- Output Voltage: Inverts input voltage (e.g., +5V → -5V)
- High Output Current: Up to 50mA
- Low Quiescent Current: 0.5mA (typical)
- Switching Frequency: 150kHz (typical)
- Small Package: SOT-23-6 (compact footprint)
- No External Diodes Required: Integrated charge pump
- Low Output Impedance: ~12Ω (efficient power delivery)
Ideal for generating negative supplies in portable devices, op-amp circuits, and data converters. Minimal external components needed.
Pinout
Pin Functions:
1. GND (Pin 1): Ground connection.
2. C+ (Pin 2): Positive terminal of the flying capacitor.
3. VOUT (Pin 3): Inverted output voltage (typically -VIN).
4. VIN (Pin 4): Input voltage (1.5V to 5.5V).
5. C- (Pin 5): Negative terminal of the flying capacitor.
6. SHDN (Pin 6): Shutdown control (active low; tie to VIN for normal operation).
Function: Converts a positive input voltage to a negative output voltage with minimal external components. Typical applications include generating negative bias for LCDs, sensors, or op-amps.
Manufacturer
Application
1. Portable Devices: Powers LCD displays, op-amps, and sensors in smartphones, tablets, and wearables.
2. Data Acquisition: Provides negative bias for ADCs, DACs, and signal conditioning circuits.
3. Industrial Systems: Used in instrumentation, test equipment, and control systems.
4. Medical Electronics: Supports imaging devices and portable medical instruments.
5. Automotive: Powers infotainment and sensor systems.
Its compact size and efficiency make it ideal for space-constrained, battery-powered designs.