Name: LT3024EDE
SKU: LT3024EDE
Price: 5.77266 USD
Availability: InStock

LT3024

3024f

Dual 100mA/500mA

Low Dropout, Low Noise,

Micropower Regulator

■

Low Noise: 20µV

RMS

(10Hz to 100kHz)

■

Low Quiescent Current: 30µA/Output

■

Wide Input Voltage Range: 1.8V to 20V

■

Output Current: 100mA/500mA

■

Very Low Shutdown Current: <0.1

■

Low Dropout Voltage: 300mV at 100mA/500mA

■

Adjustable Outputs from 1.22V to 20V

■

Stable with 1µF/3.3µF Output Capacitor

■

Stable with Aluminum, Tantalum or

Ceramic Capacitors

■

Reverse-Battery Protected

■

No Reverse Current

■

No Protection Diodes Needed

■

Overcurrent and Overtemperature Protected

■

Thermally Enhanced 16-Lead TSSOP and 12-Lead

(4mm × 3mm) DFN Packages

The LT

3024 is a dual, micropower, low noise, low drop-

out regulator. With an external 0.01µF bypass capacitor,

output noise drops to 20µV

RMS

over a 10Hz to 100kHz

bandwidth. Designed for use in battery-powered systems,

the low 30µA quiescent current per output makes it an

ideal choice. In shutdown, quiescent current drops to less

than 0.1µA. Shutdown control is independent for each

output, allowing for flexibility in power management. The

device is capable of operating over an input voltage range

of 1.8V to 20V. The device can supply 100mA of output

current from Output 2 with a dropout voltage of 300mV.

Output 1 can supply 500mA of output current with a

dropout voltage of 300mV. Quiescent current is well

controlled in dropout.

The LT3024 regulator is stable with output capacitors as

low as 1µF for the 100mA output and 3.3µF for the 500mA

output. Small ceramic capacitors can be used without the

series resistance required by other regulators.

Internal protection circuitry includes reverse-battery pro-

tection, current limiting, thermal limiting and reverse

current protection. The device is available as an adjustable

device with a 1.22V reference voltage. The LT3024 regu-

lator is available in the thermally enhanced 16-lead TSSOP

and 12-lead, low profile (4mm × 3mm × 0.75mm) DFN

packages.

10Hz to 100kHz Output Noise

3.3V/2.5V Low Noise Regulators

■

Cellular Phones

■

Pagers

■

Battery-Powered Systems

■

Frequency Synthesizers

■

Wireless Modems

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

OUT

100µV/DIV

20µV

RMS

3024 TA01b

3.7V TO

20V

3.3V AT 500mA

20µV

RMS

NOISE

249k

0.01µF 10µF

1µF

422k

3024 TA01a

OUT2

2.5V AT 100mA

20µV

RMS

NOISE

ADJ2

BYP2

GND

249k

0.01µF 10µF

261k

SHDN1

SHDN2

OUT1

ADJ1

BYP1

LT3024

FEATURES

DESCRIPTIO

APPLICATIO S

TYPICAL APPLICATIO

LT3024

3024f

(Note 1)

IN Pin Voltage........................................................ ±20V

OUT1, OUT2 Pin Voltage ....................................... ±20V

Input-to-Output Differential Voltage....................... ±20V

ADJ1, ADJ2 Pin Voltage ......................................... ±7V

BYP1, BYP2 Pin Voltage ....................................... ±0.6V

SHDN1, SHDN2 Pin Voltage ................................. ±20V

Output Short-Circut Duration.......................... Indefinite

Consult factory for parts specified with wider operating temperature ranges.

ABSOLUTE AXI U RATI GS

WWWU

PACKAGE/ORDER I FOR ATIO

LT3024EFE

ORDER PART

NUMBER

FE PART

MARKING

Operating Junction Temperature Range

(Note 2) ............................................ –40°C to 125°C

Storage Temperature Range

FE Package ....................................... –65°C to 150°C

DE Package ...................................... –65°C to 125°C

Lead Temperature (Soldering, 10 sec).................. 300°C

JMAX

= 150°C, θ

= 38°C/W, θ

= 8°C/W

EXPOSED PAD (PIN 17) IS GND

MUST BE SOLDERED TO PCB

3024EFE

FE PACKAGE

16-LEAD PLASTIC TSSOP

TOP VIEW

GND

BYP1

OUT1

GND

OUT2

BYP2

GND

ADJ1

SHDN1

SHDN2

ADJ2

GND

LT3024EDE

ORDER PART

NUMBER

DE PART

MARKING

JMAX

= 150°C, θ

= 40°C/W, θ

= 10°C/W

EXPOSED PAD (PIN 13) IS GND

MUST BE SOLDERED TO PCB

3024

ADJ1

SHDN1

SHDN2

ADJ2

BYP1

OUT1

GND

OUT2

BYP2

TOP VIEW

DE12 PACKAGE

12-LEAD (4mm × 3mm) PLASTIC DFN

PARAMETER CONDITIONS MIN TYP MAX UNITS

Minimum Input Voltage Output 2, I

LOAD

= 100mA ● 1.8 2.3 V

(Notes 3, 11) Output 1, I

LOAD

= 500mA ● 1.8 2.3 V

ADJ1, ADJ2 Pin Voltage V

= 2V, I

LOAD

= 1mA 1.205 1.220 1.235 V

(Notes 3, 4) Output 2, 2.3V < V

< 20V, 1mA < I

LOAD

< 100mA ● 1.190 1.220 1.250 V

Output 1, 2.3V < V

< 20V, 1mA < I

LOAD

< 500mA ● 1.190 1.220 1.250 V

Line Regulation (Note 3) ∆V

= 2V to 20V, I

LOAD

= 1mA ● 110 mV

Load Regulation (Note 3) Output 2, V

= 2.3V, ∆I

LOAD

= 1mA to 100mA 1 12 mV

= 2.3V, ∆I

LOAD

= 1mA to 100mA ● 25 mV

Output 1, V

= 2.3V, ∆I

LOAD

= 1mA to 500mA 1 12 mV

= 2.3V, ∆I

LOAD

= 1mA to 500mA ● 25 mV

The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T

= 25°C. (Note 2)

ELECTRICAL CHARACTERISTICS

LT3024

3024f

PARAMETER CONDITIONS MIN TYP MAX UNITS

Dropout Voltage I

LOAD

= 1mA 0.10 0.15 V

(Output 2) I

LOAD

= 1mA ● 0.19 V

= V

OUT(NOMINAL)

LOAD

= 10mA 0.17 0.22 V

(Notes 5, 6, 11)

LOAD

= 10mA ● 0.29 V

LOAD

= 50mA 0.24 0.31 V

LOAD

= 50mA ● 0.40 V

LOAD

= 100mA 0.30 0.35 V

LOAD

= 100mA ● 0.45 V

Dropout Voltage I

LOAD

= 10mA 0.13 0.19 V

(Output 1) I

LOAD

= 10mA ● 0.25 V

= V

OUT(NOMINAL)

LOAD

= 50mA 0.17 0.22 V

(Notes 5, 6, 11)

LOAD

= 50mA ● 0.32 V

LOAD

= 100mA 0.20 0.34 V

LOAD

= 100mA ● 0.44 V

LOAD

= 500mA 0.30 0.35 V

LOAD

= 500mA ● 0.45 V

GND Pin Current I

LOAD

= 0mA ● 20 45 µA

(Output 2) I

LOAD

= 1mA ● 55 90 µA

= V

OUT(NOMINAL)

LOAD

= 10mA ● 230 400 µA

(Notes 5, 7) I

LOAD

= 50mA ● 12 mA

LOAD

= 100mA ● 2.2 4 mA

GND Pin Current I

LOAD

= 0mA ● 30 75 µA

(Output 1) I

LOAD

= 1mA ● 65 120 µA

= V

OUT(NOMINAL)

LOAD

= 50mA ● 1.1 1.6 mA

(Notes 5, 7) I

LOAD

= 100mA ● 23 mA

LOAD

= 250mA ● 58 mA

LOAD

= 500mA ● 11 16 mA

Output Voltage Noise C

OUT

= 10µF, C

BYP

= 0.01µF, I

LOAD

= Full Current, 20 µV

RMS

BW = 10Hz to 100kHz

ADJ Pin Bias Current ADJ1, ADJ2 (Notes 3, 8) 30 100 nA

Shutdown Threshold V

OUT

= Off to On ● 0.80 1.4 V

OUT

= On to Off ● 0.25 0.65 V

SHDN1/SHDN2 Pin Current V

SHDN1

, V

SHDN2

= 0V ● 0 0.5 µA

(Note 9) V

SHDN1

, V

SHDN2

= 20V ● 1 3.0 µA

Quiescent Current in Shutdown V

= 6V, V

SHDN1

= 0V, V

SHDN2

= 0V 0.01 0.1 µA

Ripple Rejection V

= 2.72V (Avg), V

RIPPLE

= 0.5V

P-P

, f

RIPPLE

= 120Hz, 55 65 dB

LOAD

= Full Current

Current Limit Output 2, V

= 7V, V

OUT

= 0V 200 mA

= 2.3V, ∆V

OUT

= –0.1V ● 110 mA

Output 1, V

= 7V, V

OUT

= 0V 700 mA

= 2.3V, ∆V

OUT

= –0.1V ● 520 mA

Input Reverse Leakage Current V

= –20V, V

OUT

= 0V ● 1mA

Reverse Output Current V

OUT

= 1.22V, V

< 1.22V 5 10 µA

(Notes 3,10)

The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T

= 25°C. (Note 2)

ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LT3024 regulator is tested and specified under pulse load

conditions such that T

≈ T

. The LT3024 is 100% production tested at

= 25°C. Performance at –40°C and 125°C is assured by design,

characterization and correlation with statistical process controls.

Note 3: The LT3024 is tested and specified for these conditions with the

ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin.

Part #	LT3024EDE
Description	IC REG LDO ADJ 0.5A/0.1A 12DFN
Category	IC
Availability	In Stock
Qty	12

Qty	Price
1 - 2	$5.77266
3 - 5	$4.59189
6 - 7	$4.32950
8 - 10	$4.02337
11 +	$3.58605

LT3024EDE

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