LTC3025EDC datasheet, PDF - EEWORLD Datasheet

LTC3025EDC: DescriptionLDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP; File Size179KB，12 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC3025EDC Overview

LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP

LTC3025EDC Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Not Compliant
ECCN (US)	EAR99
Part Status	Unconfirmed
HTS	8542.39.00.01
SVHC	Yes
SVHC Exceeds Threshold	Yes
Type	LDO
Number of Outputs	1
Polarity	Positive
Accuracy (%)	±2
Output Type	Adjustable
Output Voltage (V)	0.4 to 3.6
Maximum Output Current (A)	0.3(Min)
Minimum Input Voltage (V)	0.9
Maximum Input Voltage (V)	5.5
Maximum Dropout Voltage @ Current (V)	0.1@300mA
Reference Voltage (V)	0.4
Line Regulation	0.07mV(Typ)
Load Regulation	-0.2mV(Typ)
Junction to Ambient	102°C/W
Junction to Case	20°C/W
Special Features	Current Limit\|Short Circuit Protection\|Shutdown\|Thermal Protection
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	125
Supplier Temperature Grade	Extended
Supplier Package	DFN EP
Pin Count	6
Standard Package Name	DFN
Mounting	Surface Mount
Package Height	0.75(Max)
Package Length	2
Package Width	2
PCB changed	6
Lead Shape	No Lead

User Manual

【User Guides】DC741A - Demo Manual

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LTC3025

300mA Micropower

VLDO Linear Regulator

FEATURES

DESCRIPTION

The LTC

3025 is a micropower, VLDO

(very low drop-

out) linear regulator which operates from input voltages as

low as 0.9V. The device is capable of supplying 300mA of

output current with a typical dropout voltage of only 45mV.

A BIAS supply is required to run the internal reference and

LDO circuitry while output current comes directly from

the IN supply for high efﬁciency regulation. The low 0.4V

internal reference voltage allows the LTC3025 output to

be programmed to much lower voltages than available in

common LDOs (range of 0.4V to 3.6V). The output voltage

is programmed via two ultrasmall SMD resistors.

The LTC3025’s low quiescent current makes it an ideal

choice for use in battery-powered systems. For 3-cell

NiMH and single cell Li-Ion applications, the BIAS voltage

can be supplied directly from the battery while the input

can come from a high efﬁciency buck regulator, providing

a high efﬁciency, low noise output.

Other features include high output voltage accuracy,

excellent transient response, stability with ultralow ESR

ceramic capacitors as small as 1μF short-circuit and

thermal overload protection and output current limiting.

The LTC3025 is available in a tiny, low proﬁle (0.75mm)

6-lead DFN (2mm

2mm) package.

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and VLDO

and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

Wide Input Voltage Range: 0.9V to 5.5V

Stable with Ceramic Capacitors

Very Low Dropout: 45mV at 300mA

Adjustable Output Range: 0.4V to 3.6V

±2%

Voltage Accuracy over Temperature

Supply Load

Low Noise: 80μV

RMS

(10Hz to 100kHz)

BIAS Voltage Range: 2.5V to 5.5V

Fast Transient Recovery

Shutdown Disconnects Load from V

and V

BIAS

Low Operating Current: I

= 4μA, I

BIAS

= 50μA Typ

Low Shutdown Current: I

= 1μA, I

BIAS

= 0.01μA Typ

Output Current Limit

Thermal Overload Protection

Available in 6-Lead (2mm

2mm) DFN Package

APPLICATIONS

Low Power Handheld Devices

Low Voltage Logic Supplies

DSP Power Supplies

Cellular Phones

Portable Electronic Equipment

Handheld Medical Instruments

Post Regulator for Switching Supply Noise Rejection

TYPICAL APPLICATION

1.2V Output Voltage from 1.5V Input Supply

BIAS

Li-Ion

3-CELL

NiMH

1.5V HIGH

EFFICIENCY 1.5V

DC/DC

BUCK

0.1μF

OFF ON

SHDN

GND

3025 TA01

1MHz V

Supply Rejection

1μF

OUT

= 1.2V

OUT

≤ 300mA

REJECTION (dB)

5 BIAS = 3.6V

OUT

= 1.2V

1.2 1.4 1.6

OUT

= 100mA

OUT

= 300mA

1.8 2.0

(V)

2.2

2.4

2.6

3025fd

OUT

LTC3025

ADJ

40.2k

80.6k

OUT

= 10μF

OUT

= 1μF

3025 TA01b

LTC3025EDC Related Products

	LTC3025EDC	LTC3025EDC#PBF	LTC3025EDC#TRMPBF (CUT REEL)	LTC3025EDC#TRMPBF	LTC3025EDC#TRPBF	LTC3025IDC#PBF	LTC3025IDC#TRMPBF	LTC3025IDC#TRPBF
Description	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP T/R	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP T/R	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP T/R	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP T/R	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP T/R	LDO Regulator Pos 0.4V to 3.6V 0.3A 6-Pin DFN EP T/R
EU restricts the use of certain hazardous substances	Not Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
ECCN (US)	EAR99	-	EAR99	EAR99	EAR99	-	EAR99	EAR99
Part Status	Unconfirmed	Unconfirmed	Active	Active	Active	Unconfirmed	Active	Active
Type	LDO	LDO	LDO	LDO	LDO	LDO	LDO	LDO
Number of Outputs	1	1	1	1	1	1	1	1
Polarity	Positive	Positive	Positive	Positive	Positive	Positive	Positive	Positive
Accuracy (%)	±2	±2	±2	±2	±2	±2	±2	±2
Output Type	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable
Output Voltage (V)	0.4 to 3.6	0.4 to 3.6	0.4 to 3.6	0.4 to 3.6	0.4 to 3.6	0.4 to 3.6	0.4 to 3.6	0.4 to 3.6
Maximum Output Current (A)	0.3(Min)	0.3(Min)	0.3(Min)	0.3(Min)	0.3(Min)	0.3(Min)	0.3(Min)	0.3(Min)
Minimum Input Voltage (V)	0.9	0.9	0.9	0.9	0.9	0.9	0.9	0.9
Maximum Input Voltage (V)	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Maximum Dropout Voltage @ Current (V)	0.1@300mA	0.1@300mA	0.1@300mA	0.1@300mA	0.1@300mA	0.1@300mA	0.1@300mA	0.1@300mA
Reference Voltage (V)	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Line Regulation	0.07mV(Typ)	0.07mV(Typ)	0.07mV(Typ)	0.07mV(Typ)	0.07mV(Typ)	0.07mV(Typ)	0.07mV(Typ)	0.07mV(Typ)
Load Regulation	-0.2mV(Typ)	-0.2mV(Typ)	-0.2mV(Typ)	-0.2mV(Typ)	-0.2mV(Typ)	-0.2mV(Typ)	-0.2mV(Typ)	-0.2mV(Typ)
Junction to Ambient	102°C/W	102°C/W	102°C/W	102°C/W	102°C/W	102°C/W	102°C/W	102°C/W
Junction to Case	20°C/W	20°C/W	20°C/W	20°C/W	20°C/W	20°C/W	20°C/W	20°C/W
Special Features	Current Limit\|Short Circuit Protection\|Shutdown\|Thermal Protection	Current Limit\|Short Circuit Protection\|Thermal Protection\|Shutdown	Thermal Protection\|Shutdown\|Short Circuit Protection\|Current Limit	Thermal Protection\|Shutdown\|Current Limit\|Short Circuit Protection	Current Limit\|Short Circuit Protection\|Shutdown\|Thermal Protection	Current Limit\|Short Circuit Protection\|Shutdown\|Thermal Protection	Current Limit\|Short Circuit Protection\|Thermal Protection\|Shutdown	Thermal Protection\|Current Limit\|Short Circuit Protection\|Shutdown
Minimum Operating Temperature (°C)	-40	-40	-40	-40	-40	-40	-40	-40
Maximum Operating Temperature (°C)	125	125	125	125	125	125	125	125
Supplier Temperature Grade	Extended	Extended	Extended	Extended	Extended	Industrial	Industrial	Industrial
Supplier Package	DFN EP	DFN EP	DFN EP	DFN EP	DFN EP	DFN EP	DFN EP	DFN EP
Pin Count	6	6	6	6	6	6	6	6
Standard Package Name	DFN	DFN	DFN	DFN	DFN	DFN	DFN	DFN
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	0.75(Max)	0.75(Max)	0.75(Max)	0.75(Max)	0.75(Max)	0.75(Max)	0.75(Max)	0.75(Max)
Package Length	2	2	2	2	2	2	2	2
Package Width	2	2	2	2	2	2	2	2
PCB changed	6	6	6	6	6	6	6	6
Lead Shape	No Lead	No Lead	No Lead	No Lead	No Lead	No Lead	No Lead	No Lead
HTS	8542.39.00.01	8542.39.00.01	-	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01
Packaging	-	-	Tape and Reel	Tape and Reel	Tape and Reel	Tape and Reel	Tape and Reel	Tape and Reel

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