ADP5034
Info : RECOMMENDED FOR NEW DESIGNS
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ADP5034

Dual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 9
1ku List Price Starting From $2.13
Features
  • 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
Additional Details
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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
Part Models 9
1ku List Price Starting From $2.13

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP5034ACPZ-1-R7
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ADP5034ACPZ-2-R7
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ADP5034ACPZ-3-R7
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ADP5034ACPZ-R2
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ADP5034ACPZ-R7
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ADP5034AREZ
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ADP5034AREZ-1
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ADP5034AREZ-1-R7
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ADP5034AREZ-R7
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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

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ADP5034ACPZ-2-R7

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ADP5034ACPZ-R2

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ADP5034ACPZ-R7

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Product Lifecycle

PCN

Aug 6, 2014

- 13_0230

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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

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ADP5034ACPZ-3-R7

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ADP5034ACPZ-R2

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ADP5034ACPZ-R7

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADP5034

ADP5034 Evaluation Board

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EVAL-ADP5034

ADP5034 Evaluation Board

ADP5034 Evaluation Board

Features and Benefits

  • Full featured evaluation board for the ADP5034 TSSOP
  • Standalone capability
  • Simple device measurements, including line and load regulation, demonstrable with
    • A single voltage supply
    • A voltmeter
    • An ammeter
    • Load resistors
  • Easy access to external components
  • Cascading options to supply the low dropout (LDO) regulator from either buck regulator
  • Dedicated enable option for each channel
  • Mode option to change buck regulators from power save mode (PSM) to pulse-width modulation (PWM) operation

Product Detail

This user guide describes the hardware for the evaluation of the ADP5034 and includes detailed schematics and PCB layouts. The ADP5034 is available in either a 24-lead LFCSP package or a 28-lead TSSOP package. Note that UG-439 refers to the ADP5034 TSSOP evaluation board, ADP5034RE-EVALZ. Refer to UG-271 for information on the ADP5034 LFCSP.


The ADP5034 TSSOP evaluation board has two step-down regulators with two LDO regulators that enable evaluation of the ADP5034. The evaluation board is available in an adjustable voltage option.


Full details on the ADP5034 are provided in the ADP5034 data sheet available from Analog Devices, Inc., which must be consulted in conjunction with UG-439.


Tools & Simulations

Tools & Simulations 2

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