Overview
The ADP2109ACBZ-1.2-R7 is a step-down dc-to-dc converter produced by Analog Devices Inc. This component is designed to provide high efficiency and a compact solution for power management in various electronic devices. The ADP2109 operates with an input voltage range of 2.3 V to 5.5 V and can regulate the output voltage down to 1.0 V, with specific versions available for fixed output voltages of 1.8 V, 1.5 V, 1.2 V, and 1.0 V. It features an internal power switch and synchronous rectifier, minimizing the need for external components and enhancing overall efficiency.
However, it is important to note that the ADP2109ACBZ-1.2-R7 is now obsolete and no longer manufactured by Analog Devices Inc.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.3 | 5.5 | V | |
| Output Voltage | 1.0 | 1.8 | V | |
| Maximum Load Current | 600 | mA | ||
| Oscillator Frequency | 2.5 | 3.0 | 3.5 | MHz |
| Start-Up Time | 550 | μs | ||
| Thermal Shutdown Threshold | 150 | °C | ||
| Thermal Shutdown Hysteresis | 20 | °C | ||
| Minimum Input and Output Capacitance | 4.7 | μF | ||
| Minimum and Maximum Inductance | 0.3 | 3.0 | μH |
Key Features
- Internal power switch and synchronous rectifier for high efficiency and minimal external part count.
- Fixed frequency, high speed current mode architecture.
- Operates in fixed frequency PWM mode at medium to high loads and shifts to power save mode at light loads to reduce regulation power losses.
- Undervoltage lockout to prevent deep battery discharge.
- Programmable soft start to limit inrush current at startup.
- Logic-controlled shutdown with input disconnection from output, drawing less than 1 μA from the input source.
- Thermal shutdown and short-circuit protection.
- Compact 5-ball WLCSP package.
Applications
- Mobile handsets and smartphones.
- PDAs and palmtop computers.
- Telecommunication and networking equipment.
- Set top boxes and audio/video consumer electronics.
- Battery-powered devices, including those using NiMH cells, PCMCIA, USB, and other standard power sources.
Q & A
- What is the input voltage range of the ADP2109?
The input voltage range of the ADP2109 is from 2.3 V to 5.5 V.
- What are the available fixed output voltages for the ADP2109?
The ADP2109 is available in fixed output voltages of 1.8 V, 1.5 V, 1.2 V, and 1.0 V.
- What is the maximum load current of the ADP2109?
The maximum load current of the ADP2109 is 600 mA.
- What is the oscillator frequency of the ADP2109?
The oscillator frequency of the ADP2109 is between 2.5 MHz and 3.5 MHz.
- Does the ADP2109 have thermal shutdown protection?
- What is the package type of the ADP2109?
The ADP2109 is available in a 5-ball WLCSP package.
- Is the ADP2109 still in production?
No, the ADP2109 is obsolete and no longer manufactured by Analog Devices Inc.
- What are some key features of the ADP2109?
Key features include an internal power switch and synchronous rectifier, undervoltage lockout, soft start, and logic-controlled shutdown.
- What are typical applications for the ADP2109?
Typical applications include mobile handsets, PDAs, telecommunication equipment, set top boxes, and audio/video consumer electronics.
- How does the ADP2109 manage power efficiency at different load levels?
The ADP2109 operates in fixed frequency PWM mode at medium to high loads and shifts to power save mode at light loads to reduce regulation power losses.
