ADP5034
PRODUCTIONDual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs
- Part Models
- 9
- 1ku List Price
- Starting From $2.70
Overview
- Main input voltage range: 2.3 V to 5.5 V
- Two 1200 mA buck regulators and two 300 mA LDOs
- 24-lead, 4 mm × 4 mm LFCSP or 28-lead TSSOP package
- Regulator accuracy: ±1.8%
- Factory programmable or external adjustable VOUTx
- 3 MHz buck operation with forced PWM and auto PWM/PSM modes
- BUCK1/BUCK2: output voltage range from 0.8 V to 3.8 V
- LDO1/LDO2: output voltage range from 0.8 V to 5.2 V
- LDO1/LDO2: input supply voltage from 1.7 V to 5.5 V
- LDO1/LDO2: high PSRR and low output noise
The ADP5034 combines two high performance buck regulators and two low dropout (LDO) regulators in a small, 24-lead 4 mm × 4 mm LFCSP (QFN) to meet demanding performance and board space requirements.
The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. When the MODE pin is set high, the buck regulators operate in forced PWM mode. When the MODE pin is set low, the buck regulators operate in PWM mode when the load is around the nominal value. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving the light-load efficiency.
The two bucks operate out of phase to reduce the input capaci-tor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5034 LDOs extend the battery life of portable devices. The ADP5034 LDOs maintain power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.
Regulators in the ADP5034 are activated though dedicated enable pins. The default output voltages can be externally set in the adjustable version, or factory programmable in the fixed voltage version, and can be set to a wide range of preset values
APPLICATIONS
- Power for processors, ASICS, FPGAs, and RF chipsets
- Portable instrumentation and medical devices
- Space constrained devices
Documentation
Data Sheet 1
User Guide 2
Application Note 2
Brochure 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADP5034ACPZ-1-R7 | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) | ||
| ADP5034ACPZ-2-R7 | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) | ||
| ADP5034ACPZ-3-R7 | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) | ||
| ADP5034ACPZ-R2 | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) | ||
| ADP5034ACPZ-R7 | 24-Lead LFCSP (4mm x 4mm x 0.75mm w/ EP) | ||
| ADP5034AREZ | 28-Lead TSSOP w/ EP | ||
| ADP5034AREZ-1 | 28-Lead TSSOP w/ EP | ||
| ADP5034AREZ-1-R7 | 28-Lead TSSOP w/ EP | ||
| ADP5034AREZ-R7 | 28-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 6, 2014 - 13_0230 Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China |
||
| ADP5034ACPZ-1-R7 | PRODUCTION | |
| ADP5034ACPZ-2-R7 | PRODUCTION | |
| ADP5034ACPZ-3-R7 | PRODUCTION | |
| ADP5034ACPZ-R2 | PRODUCTION | |
| ADP5034ACPZ-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
5V uPMU BuckDesigner
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
Open ToolADI Linear Regulator Design Tool and Parametric Search
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
Open ToolEvaluation Kits
ADP5034 Evaluation Board