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LM26484

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Two DCDC and One LDO Configurable PMIC

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Data sheet

LM26484

ACTIVE
Data sheet Order now

Product details

Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 3 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 1 Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 2 Configurability Hardware configurable Features Enable, Overcurrent protection, Power good, Power sequencing, Synchronous rectification, Thermal shutdown, UVLO fixed Rating Catalog Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Switching frequency (max) (kHz) 2000 Shutdown current (ISD) (typ) (µA) 0.03 Switching frequency (typ) (kHz) 2000
Processor supplier Generic Processor name Generic Product type Processor and FPGA Regulated outputs (#) 3 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 1 Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 2 Configurability Hardware configurable Features Enable, Overcurrent protection, Power good, Power sequencing, Synchronous rectification, Thermal shutdown, UVLO fixed Rating Catalog Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Switching frequency (max) (kHz) 2000 Shutdown current (ISD) (typ) (µA) 0.03 Switching frequency (typ) (kHz) 2000
WQFN (NHZ) 24 20 mm² 5 x 4
  • Step-Down DC/DC Converter (Buck)
    • 3.0–5.5V Input Range
    • Externally Adjustable VOUT:
    • Bucks 1 & 2: 0.8V–3.5V @ 2A
    • 180° Phase Shift Between Bucks Clocks
    • 2 MHz PWM Switching Frequency
    • ±1% feedback Voltage Accuracy
    • Automatic Soft Start
    • Current Overload Protection
    • PWM/PFM efficiency Modes Available
  • Linear Regulator (LDO) Controller
    • 3.0V–5.5V Input Range
    • Externally Adjustable VOUT
    • ±1.5% Feedback Voltage Accuracy
    • Regulated to Low VIN - Low VOUT LI-LO (Low Input Low Output) NFET Operation
    • Input to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2
    • Up to 1000 mA Output Current by Selection of External FET

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  • Step-Down DC/DC Converter (Buck)
    • 3.0–5.5V Input Range
    • Externally Adjustable VOUT:
    • Bucks 1 & 2: 0.8V–3.5V @ 2A
    • 180° Phase Shift Between Bucks Clocks
    • 2 MHz PWM Switching Frequency
    • ±1% feedback Voltage Accuracy
    • Automatic Soft Start
    • Current Overload Protection
    • PWM/PFM efficiency Modes Available
  • Linear Regulator (LDO) Controller
    • 3.0V–5.5V Input Range
    • Externally Adjustable VOUT
    • ±1.5% Feedback Voltage Accuracy
    • Regulated to Low VIN - Low VOUT LI-LO (Low Input Low Output) NFET Operation
    • Input to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2
    • Up to 1000 mA Output Current by Selection of External FET

All trademarks are the property of their respective owners.

The LM26484 is a multi-function, configurable Power Management Unit. This device integrates two highly efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and thermal overload protection circuitry. All regulator output voltages are externally adjustable. The LDO controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-24 pin package.

The LM26484 is a multi-function, configurable Power Management Unit. This device integrates two highly efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and thermal overload protection circuitry. All regulator output voltages are externally adjustable. The LDO controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-24 pin package.

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Top documentation Type Title Format options Date
* Data sheet LM26484 Power Management Unit datasheet (Rev. F) 07 Mar 2013
Application note Parasitics can Hinder Switcher Regulator and LDO Designs (Rev. A) 01 Jul 2014

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WQFN (NHZ) 24 Ultra Librarian
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