ISL80101_11 datasheet, PDF - EEWORLD Datasheet

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ISL80101_11: DescriptionHigh Performance 1A LDO; File Size518KB，11 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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ISL80101_11 Overview

High Performance 1A LDO

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High Performance 1A LDO

ISL80101

The ISL80101 is a low voltage, high current, single output LDO

specified at 1A output current. This LDO operates from input

voltages of 2.2V to 6V. Fixed output voltage options are

available in 1.8V, 2.5V, 3.3V and 5.0V versions. Other custom

voltage options are available upon request. For the adjustable

output version of the ISL80101, please refer to the

ISL80101-ADJ

datasheet.

A sub-micron BiCMOS process is utilized for this product family

to deliver the best in class analog performance and overall

value. This CMOS LDO consumes significantly lower quiescent

current as a function of load compared to bipolar LDOs, which

translates into higher efficiency and packages with smaller

footprints. State of the art internal compensation achieves a

very fast load transient response. An external capacitor on the

soft-start pin provides an adjustable soft-starting ramp. The

ENABLE feature allows the part to be placed into a low

quiescent current shutdown mode. A Power-Good logic output

signals a fault condition.

Table 1 shows the differences between the ISL80101 and

others in its family:

TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS

PART NUMBER

ISL80101-ADJ

ISL80101

ISL80101A

ISL80121-5

PROGRAMMABLE

LIMIT

Yes

LIMIT

(DEFAULT)

1.75A

1.62A

0.75A

ADJ or FIXED

OUT

ADJ

1.8V, 2.5V,

3.3V, 5.0V

ADJ

5.0V

Features

• ±0.2% Initial V

OUT

Accuracy

• ±1.8% V

OUT

Accuracy Guaranteed Over Line, Load and

= -40°C to +125°C

• Very Low 130mV Dropout Voltage at V

OUT

= 2.5V

• Very Fast Transient Response

• Programmable Soft-starting

• Power-Good Output

• Excellent 58dB PSRR at 1kHz

• Current Limit Protection

• Thermal Shutdown Function

• Available in a 10 Ld DFN Package

• Pb-Free (RoHS Compliant)

Applications

• DSP, FPGA and µP Core Power Supplies

• Noise-Sensitive Instrumentation Systems

• Post Regulation of Switched Mode Power Supplies

• Industrial Systems

• Medical Equipment

• Telecommunications and Networking Equipment

• Servers

• Hard Disk Drives (HD/HDD)

Related Literature

• See

AN1592,

“ISL80101 High Performance 1A LDO

Evaluation Board User Guide”

5.4V ± 10%

10µF

10k

OUT

5.0V ± 1.8%

DROPOUT VOLTAGE (mV)

10µF

OUT

140

120

100

0.2

0.4

0.6

OUT

= 2.5V

0.8

1.0

SENSE

ISL80101

100k

ENABLE

GND

0.01µF

OUTPUT CURRENT (A)

FIGURE 1. TYPICAL APPLICATION CIRCUIT

FIGURE 2. DROPOUT vs LOAD CURRENT

August 31, 2011

FN6931.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

ISL80101_11 Related Products

	ISL80101_11	ISL80101-ADJ
Description	High Performance 1A LDO	High Performance 1A LDO

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