ADP5037
Info : RECOMMENDED FOR NEW DESIGNS
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ADP5037

Dual 3 MHz, 800 mA Buck Regulators 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 4
1ku List Price Starting From $2.17
Features
  • Main input voltage range: 2.3 V to 5.5 V
  • Two 800 mA buck regulators and two 300 mA LDOs
  • 24-lead, 4 mm × 4 mm LFCSP 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: low 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 ADP5037 combines two high performance buck regulators and two low dropout (LDO) regulators in a small, 24-lead 4 mm × 4 mm LFCSP 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 and the load is above a predefined threshold, the buck regulators operate in PWM mode. 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 capacitor requirement. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5037 LDOs extend the battery life of portable devices. The ADP5037 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 ADP5037 are activated though dedicated enable pins. The default 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.

APPLICATIONS

  • Power for processors, ASICS, FPGAs, and RF chipsets
  • Portable instrumentation and medical devices
  • Space constrained devices 
Part Models 4
1ku List Price Starting From $2.17

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP5037ACPZ-1-R7
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ADP5037ACPZ-2-R7
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ADP5037ACPZ-3-R7
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ADP5037ACPZ-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

ADP5037ACPZ-1-R7

PRODUCTION

ADP5037ACPZ-2-R7

PRODUCTION

ADP5037ACPZ-3-R7

PRODUCTION

ADP5037ACPZ-R7

PRODUCTION

Filter by Model

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Reset Filters

Part Models

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

ADP5037ACPZ-1-R7

PRODUCTION

ADP5037ACPZ-2-R7

PRODUCTION

ADP5037ACPZ-3-R7

PRODUCTION

ADP5037ACPZ-R7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

EVAL-ADP5037

ADP5037 Evaluation Board

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EVAL-ADP5037

ADP5037 Evaluation Board

ADP5037 Evaluation Board

Features and Benefits

  • Full featured evaluation boards for the ADP5037
  • 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

The ADP5037 is available in a 24-lead, 4 mm × 4 mm LFCSP package. The ADP5034/ADP5037 are 4-channel devices that share a common PCB evaluation board.


The ADP5037 evaluation board, ADP5037CP-EVALZ, has two step-down regulators with two LDO regulators that enable evaluation of the ADP50374. The evaluation board is available in an adjustable voltage option.


For full details on the ADP5037, consult the product data sheet in conjunction with this evaluation board user guide.

Tools & Simulations

Tools & Simulations 1

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