LM26480

AKTIV

Zweifache Abwärtsregler, 2 MHz, 1,5 A, und zweifache LDOs, 300 mA, mit individueller Aktivierung und

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Datenblatt

document-pdfAcrobat LM26480 Dual 2-MHz, 1.5-A Buck Regulators and Dual 300-mA LDOs With Individual Enable and Power Good datasheet (Rev. N) (Englisch) PDF | HTML

LM26480

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Processor supplier

Generic

Processor name

Generic

Regulated outputs (#)

4

Step-down DC/DC converter

2

Step-up DC/DC converter

0

LDO

2

Vin (min) (V)

2.8

Vin (max) (V)

5.5

Vout (min) (V)

1

Vout (max) (V)

3.3

Iout (max) (A)

1.5

Configurability

Hardware configurable

Features

Enable, Light-load efficiency, Power good, Synchronous rectification, UVLO fixed

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Step-down DC/DC controller

0

Step-up DC/DC controller

0

Iq (typ) (mA)

0.033

Switching frequency (max) (kHz)

2500

Switching frequency (typ) (kHz)

2100

Product type

Processor and FPGA

Processor supplier

Generic

Processor name

Generic

Regulated outputs (#)

4

Step-down DC/DC converter

2

Step-up DC/DC converter

0

LDO

2

Vin (min) (V)

2.8

Vin (max) (V)

5.5

Vout (min) (V)

1

Vout (max) (V)

3.3

Iout (max) (A)

1.5

Configurability

Hardware configurable

Features

Enable, Light-load efficiency, Power good, Synchronous rectification, UVLO fixed

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Step-down DC/DC controller

0

Step-up DC/DC controller

0

Iq (typ) (mA)

0.033

Switching frequency (max) (kHz)

2500

Switching frequency (typ) (kHz)

2100

Product type

Processor and FPGA

WQFN (RTW)

24

16 mm² 4 x 4

Input Voltage: 2.8 V to 5.5 V
Compatible with Advanced Applications Processors and FPGAs
Two LDOs for Powering Internal Processor Functions and I/Os
Precision Internal Reference
Thermal Overload Protection
Current Overload Protection
External Power-On-Reset Function for Buck1 and Buck2
Undervoltage Lockout Detector to Monitor Input Supply Voltage
Step-Down DC-DC Converters (Buck)
- 1.5-A Output Current
- V_OUT from:
- Buck1 : 0.8 V to 2 V at 1.5 A
- Buck2 : 1 V to 3.3 V at 1.5 A
- Up to 96% efficiency
- ±3% FB Voltage Accuracy
- 2-MHz PWM Switching Frequency
- PWM-to-PFM Automatic Mode Change Under Low Loads
- Automatic Soft Start
Linear Regulators (LDO)
- V_OUT of 1 V to 3.5 V
- ±3% FB Voltage Accuracy
- 300-mA Output Current
- 25-mV (Typical) Dropout

Input Voltage: 2.8 V to 5.5 V
Compatible with Advanced Applications Processors and FPGAs
Two LDOs for Powering Internal Processor Functions and I/Os
Precision Internal Reference
Thermal Overload Protection
Current Overload Protection
External Power-On-Reset Function for Buck1 and Buck2
Undervoltage Lockout Detector to Monitor Input Supply Voltage
Step-Down DC-DC Converters (Buck)
- 1.5-A Output Current
- V_OUT from:
- Buck1 : 0.8 V to 2 V at 1.5 A
- Buck2 : 1 V to 3.3 V at 1.5 A
- Up to 96% efficiency
- ±3% FB Voltage Accuracy
- 2-MHz PWM Switching Frequency
- PWM-to-PFM Automatic Mode Change Under Low Loads
- Automatic Soft Start
Linear Regulators (LDO)
- V_OUT of 1 V to 3.5 V
- ±3% FB Voltage Accuracy
- 300-mA Output Current
- 25-mV (Typical) Dropout

The LM26480 is a multi-functional power management unit (PMU), optimized for low-power digital applications. This device integrates two highly efficient 1.5-A step-down DC-DC converters and two 300-mA linear regulators. The DC-DC buck converters provide typical efficiencies of 96%, allowing for minimal power consumption. Features include soft start, undervoltage lockout, current overload protection, thermal overload protection, and an internal power-on-reset (POR) circuit, which monitors the output voltage levels on bucks 1 and 2.

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Technische Dokumentation

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Alle anzeigen 6

	Typ	Titel		Datum
*	Data sheet	LM26480 Dual 2-MHz, 1.5-A Buck Regulators and Dual 300-mA LDOs With Individual Enable and Power Good datasheet (Rev. N)	PDF \| HTML	27 Jun 2017
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Technical article	Integrated power devices simplify FPGA and SoC designs	PDF \| HTML	11 Jan 2017
	White paper	Power Management IC (PMIC) Guide for Automotive (Rev. A)		29 Okt 2014
	Application note	Enhancing Bit-Flip Recovery and PMU Design For Defense/Industrial Applications		14 Aug 2014
	User guide	Eval Kit for LM26480 Dual DC/DC Buck Regulatrs w/Dual Low-Noise Linear Regulator (Rev. D)		18 Apr 2013

Design und Entwicklung

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Evaluierungsplatine

LM26480SQ-AAEV — Evaluierungsmodul für LM26480SQ AA: Konfigurierbarer Power-Management-IC (PMIC) mit 2 DC/DCs und 2 L

The LM26480 is a multi-functional Power Management Unit, optimized for low-power digital applications. This device integrates two highly efficient 1.5A step-down DC/DC converters and two 300mA linear regulators. The LM26480 is offered in a tiny 4 x 4 x 0.8mm LLP-24 pin package.

The LM26480 (...)

Benutzerhandbuch: PDF