Overview
The ADP5034ACPZ-R7, produced by Analog Devices Inc., is a highly integrated power management unit that combines two high-performance buck regulators and two low dropout (LDO) regulators. This device is designed to optimize power efficiency and minimize board space, making it ideal for a variety of applications including power for processors, ASICs, FPGAs, and RF chipsets, as well as portable instrumentation and medical devices. The ADP5034 is available in either a 24-lead 4 mm × 4 mm LFCSP or a 28-lead TSSOP package, allowing for flexibility in design and implementation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range (BUCK1/BUCK2) | 2.3 | 5.5 | V | |
| Output Voltage Range (BUCK1/BUCK2) | 0.8 | 3.8 | V | |
| Input Voltage Range (LDO1/LDO2) | 1.7 | 5.5 | V | |
| Output Voltage Range (LDO1/LDO2) | 0.8 | 5.2 | V | |
| Switching Frequency (BUCK1/BUCK2) | 3 | MHz | ||
| Output Current (BUCK1/BUCK2) | 1200 | mA | ||
| Output Current (LDO1/LDO2) | 300 | mA | ||
| Quiescent Current | 53 | µA | ||
| Line Regulation (LDO1/LDO2) | -0.03 | +0.03 | %/V | |
| Load Regulation (LDO1/LDO2) | 0.001 | 0.003 | %/mA |
Key Features
- High-performance buck regulators with 3 MHz switching frequency and forced PWM or auto PWM/PSM modes.
- Two low dropout (LDO) regulators with high PSRR and low output noise.
- Wide input voltage range and adjustable or factory-programmable output voltages.
- Low quiescent current to extend battery life in portable devices.
- Compact packaging options (24-lead LFCSP or 28-lead TSSOP) to minimize board space.
- Dedicated enable pins for each regulator to control power management.
Applications
- Power for processors, ASICs, FPGAs, and RF chipsets.
- Portable instrumentation and medical devices.
- Space-constrained devices requiring efficient power management.
Q & A
- What is the input voltage range for the buck regulators in the ADP5034? The input voltage range for the buck regulators is from 2.3 V to 5.5 V.
- What are the output voltage ranges for the buck and LDO regulators? The output voltage range for the buck regulators is from 0.8 V to 3.8 V, and for the LDO regulators, it is from 0.8 V to 5.2 V.
- What is the switching frequency of the buck regulators? The switching frequency of the buck regulators is 3 MHz.
- How much current can each regulator supply? The buck regulators can supply up to 1200 mA each, and the LDO regulators can supply up to 300 mA each.
- What is the quiescent current of the ADP5034? The quiescent current is as low as 53 µA.
- What are the packaging options for the ADP5034? The ADP5034 is available in either a 24-lead 4 mm × 4 mm LFCSP or a 28-lead TSSOP package.
- How are the regulators enabled? Each regulator is activated through dedicated enable pins.
- What are some typical applications of the ADP5034? Typical applications include power for processors, ASICs, FPGAs, RF chipsets, portable instrumentation, and medical devices.
- What are the key benefits of using the ADP5034? Key benefits include low quiescent current, high PSRR, low output noise, and compact packaging to minimize board space.
- Can the output voltages be adjusted? Yes, the output voltages can be externally set in the adjustable version or factory-programmable to a wide range of preset values in the fixed voltage version.
