LT1764AEQ-2.5 datasheet, PDF - EEWORLD Datasheet

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LT1764AEQ-2.5: Description2.5 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PSSO5; CategoryPower/power management The power supply circuit; File Size608KB，20 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LT1764AEQ-2.5 Overview

2.5 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PSSO5

LT1764AEQ-2.5 Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	incompatible
Parts packaging code	D2PAK
package instruction	TO-263, SMSIP5H,.6,67TB
Contacts	5
Manufacturer packaging code	Q
Reach Compliance Code	_compli
ECCN code	EAR99
Adjustability	FIXED
Maximum drop-back voltage 1	0.66 V
Nominal dropback voltage 1	0.34 V
Maximum absolute input voltage	20 V
Maximum input voltage	20 V
Minimum input voltage	3.5 V
JESD-30 code	R-PSSO-G5
JESD-609 code	e0
length	10.2235 mm
Maximum grid adjustment rate	0.01%
Maximum load regulation	0.03%
Humidity sensitivity level	1
Number of functions	1
Output times	1
Number of terminals	5
Working temperatureTJ-Max	125 °C
Operating temperatureTJ-Mi	-40 °C
Maximum output current 1	3 A
Maximum output voltage 1	2.575 V
Minimum output voltage 1	2.412 V
Nominal output voltage 1	2.5 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-263
Encapsulate equivalent code	SMSIP5H,.6,67TB
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	235
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.877 mm
surface mount	YES
technology	BIPOLAR
Terminal surface	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrie
Terminal form	GULL WING
Terminal pitch	1.7 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	20
Maximum voltage tolerance	3.52%
width	8.89 mm
Base Number Matches	1

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LT1764A Series

3A, Fast Transient

Response, Low Noise,

LDO Regulators

FEATURES

■

DESCRIPTIO

Optimized for Fast Transient Response

Output Current: 3A

Dropout Voltage: 340mV at 3A

Low Noise: 40

RMS

(10Hz to 100kHz)

1mA Quiescent Current

Wide Input Voltage Range: 2.7V to 20V

No Protection Diodes Needed

Controlled Quiescent Current in Dropout

Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V

Adjustable Output from 1.21V to 20V

< 1µA Quiescent Current in Shutdown

Stable with 10µF Output Capacitor*

Stable with Ceramic Capacitors*

Reverse Battery Protection

No Reverse Current

Thermal Limiting

APPLICATIO S

■

The LT

1764A is a low dropout regulator optimized for

fast transient response. The device is capable of supplying

3A of output current with a dropout voltage of 340mV.

Operating quiescent current is 1mA, dropping to < 1µA in

shutdown. Quiescent current is well controlled; it does not

rise in dropout as it does with many other regulators. In

addition to fast transient response, the LT1764A has very

low output voltage noise which makes the device ideal for

sensitive RF supply applications.

Output voltage range is from 1.21V to 20V. The LT1764A

regulators are stable with output capacitors as low as 10µF.

Internal protection circuitry includes reverse battery pro-

tection, current limiting, thermal limiting and reverse cur-

rent protection. The device is available in fixed output

voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable

device with a 1.21V reference voltage. The LT1764A regu-

lators are available in 5-lead TO-220 and DD packages, and

16-lead FE packages.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

*See Applications Information Section.

3.3V to 2.5V Logic Power Supply

Post Regulator for Switching Supplies

TYPICAL APPLICATIO

400

3.3V

to 2.5V

OUT

Regulator

DROPOUT VOLTAGE (mV)

2.5V

10µF*

LT1764A-2.5

SHDN SENSE

GND

1764 TA01

350

300

250

200

150

100

0.5

1.0

1.5

2.0

LOAD CURRENT (A)

2.5

3.0

1764 TA02

> 3V

10µF*

OUT

*TANTALUM,

CERAMIC OR

ALUMINUM ELECTROLYTIC

Dropout Voltage

1764afb

LT1764AEQ-2.5 Related Products

	LT1764AEQ-2.5	LT1764AEQ-25	LT1764AEFE	LT1764AEFE-1.5	LT1764AEFE-3.3	LT1764AEQ-3.3	LT1764AET-1.5	LT1764AET-2.5	LT1764AET-3.3	LT1764AMPQ
Description	2.5 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PSSO5	1.21 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PDSO16	1.21 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PDSO16	1.21 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PDSO16	3.3 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PDSO16	3.3 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PSSO5	1.21 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PDSO16	2.5 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PZFM5	3.3 V FIXED POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PZFM5	1.21 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.66 V DROPOUT, PSSO5
Number of functions	1	1	1	1	1	1	1	1	1	1
Number of terminals	5	16	16	16	16	5	5	5	5	5
surface mount	YES	Yes	YES	YES	YES	YES	NO	NO	NO	YES
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	GULL WING
Terminal location	SINGLE	DUAL	DUAL	DUAL	DUAL	SINGLE	ZIG-ZAG	ZIG-ZAG	ZIG-ZAG	SINGLE
Brand Name	Linear Technology	-	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	incompatible	-	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible
Parts packaging code	D2PAK	-	TSSOP	TSSOP	TSSOP	D2PAK	TO-220	TO-220	TO-220	D2PAK
package instruction	TO-263, SMSIP5H,.6,67TB	-	4.40 MM, PLASTIC, TSSOP-16	HTSSOP, TSSOP16,.25	HTSSOP, TSSOP16,.25	TO-263, SMSIP5H,.6,67TB	TO-220, ZIP5,.15,.2,67TB	TO-220, ZIP5,.15,.2,67TB	TO-220, ZIP5,.15,.2,67TB	TO-263, SMSIP5H,.6,67TB
Contacts	5	-	16	16	16	5	5	5	5	5
Manufacturer packaging code	Q	-	FE	FE	FE	Q	T	T	T	Q
Reach Compliance Code	_compli	-	_compli	not_compliant	_compli	_compli	not_compliant	not_compliant	not_compliant	_compli
ECCN code	EAR99	-	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Adjustability	FIXED	-	ADJUSTABLE	FIXED	FIXED	FIXED	FIXED	FIXED	FIXED	ADJUSTABLE
Maximum drop-back voltage 1	0.66 V	-	0.66 V	0.66 V	0.66 V	0.66 V	0.66 V	0.66 V	0.66 V	0.66 V
Nominal dropback voltage 1	0.34 V	-	0.34 V	0.34 V	0.34 V	0.34 V	0.34 V	0.34 V	0.34 V	0.34 V
Maximum absolute input voltage	20 V	-	20 V	20 V	20 V	20 V	20 V	20 V	20 V	20 V
Maximum input voltage	20 V	-	-	20 V	20 V	20 V	20 V	20 V	20 V	-
Minimum input voltage	3.5 V	-	-	2.7 V	4.3 V	4.3 V	2.7 V	3.5 V	4.3 V	-
JESD-30 code	R-PSSO-G5	-	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PSSO-G5	R-PZFM-T5	R-PZFM-T5	R-PZFM-T5	R-PSSO-G5
JESD-609 code	e0	-	e0	e0	e0	e0	e0	e0	e0	e0
length	10.2235 mm	-	5 mm	5 mm	5 mm	10.2235 mm	10.2235 mm	10.2235 mm	10.2235 mm	10.2235 mm
Maximum grid adjustment rate	0.01%	-	-	0.01%	0.01%	0.01%	0.01%	0.01%	0.01%	-
Maximum load regulation	0.03%	-	-	0.023%	0.04%	0.04%	0.023%	0.03%	0.04%	-
Humidity sensitivity level	1	-	1	1	1	1	1	1	1	3
Output times	1	-	1	1	1	1	1	1	1	1
Working temperatureTJ-Max	125 °C	-	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Maximum output current 1	3 A	-	3 A	3 A	3 A	3 A	3 A	3 A	3 A	3 A
Maximum output voltage 1	2.575 V	-	20 V	1.545 V	3.4 V	3.4 V	1.545 V	2.575 V	3.4 V	20 V
Minimum output voltage 1	2.412 V	-	1.21 V	1.447 V	3.183 V	3.183 V	1.447 V	2.412 V	3.183 V	1.21 V
Nominal output voltage 1	2.5 V	-	-	1.5 V	3.3 V	3.3 V	1.5 V	2.5 V	3.3 V	-
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TO-263	-	HTSSOP	HTSSOP	HTSSOP	TO-263	TO-220	TO-220	TO-220	TO-263
Encapsulate equivalent code	SMSIP5H,.6,67TB	-	TSSOP16,.25	TSSOP16,.25	TSSOP16,.25	SMSIP5H,.6,67TB	ZIP5,.15,.2,67TB	ZIP5,.15,.2,67TB	ZIP5,.15,.2,67TB	SMSIP5H,.6,67TB
Package shape	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	-	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	FLANGE MOUNT	FLANGE MOUNT	FLANGE MOUNT	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	235	-	235	235	235	235	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	245
Certification status	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	-	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.877 mm	-	1.1 mm	1.1 mm	1.1 mm	4.877 mm	4.572 mm	4.572 mm	4.572 mm	4.877 mm
technology	BIPOLAR	-	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR
Terminal surface	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrie	-	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrie	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier	Tin/Lead (Sn/Pb) - with Nickel (Ni) barrie
Terminal pitch	1.7 mm	-	0.65 mm	0.65 mm	0.65 mm	1.7 mm	1.7 mm	1.7 mm	1.7 mm	1.7 mm
Maximum time at peak reflow temperature	20	-	20	20	20	20	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	40
Maximum voltage tolerance	3.52%	-	-	3.53%	3.54%	3.54%	3.53%	3.52%	3.54%	-
width	8.89 mm	-	4.4 mm	4.4 mm	4.4 mm	8.89 mm	8.89 mm	8.89 mm	8.89 mm	8.89 mm
Maker	-	-	-	Linear ( ADI )	Linear ( ADI )	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )

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Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

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