LTC3589EUJ-1_技术文档

DEMO MANUAL

DC1808B-A/DC1808B-B

LTC3589EUJ-1/LTC3589EUJ-2

8-Output Regulator with

2

Sequencing and I C

Description

Demonstration circuit 1808B-A/1808B-B is a multioutput

The LTC3589EUJ-x has two status registers, PGSTAT and

IRQSTAT, that can be used to determine the current state

of the device.

2

power supplywithapushbutton controller and I C, featur-

ing the LTC^®3589EUJ-1 (-A) or LTC3589EUJ-2 (-B). The

LTC3589EUJ-x has three synchronous buck regulators,

a buck-boost regulator, an always-on LDO and three LDO

regulators. The input voltage range of the LTC3589EUJ-x

isideal forsingle-cellLi-Ion/Polymerbattery applications.

2

The two status registers, which can be read via I C, in-

dicate which regulators are in regulation and if a UV or

OT event occurred. The command registers, which are

used to control the switching regulators and program the

The switching regulator settings, such as enables, feed-

back voltages, operating modes and other functions, can

2

special functions, can also be read back via I C to assure

the correct data was received.

2

be controlled via I C. All of the regulators, except the

Refer to the LTC3589EUJ data sheet for more details on

the electrical and timing specifications and for an explan-

ation of the different device options (LTC3589-1 and

LTC3589-2). Also see Table 1 in this demo manual.

always-on LDO1, can also be enabled via external enable

pins. After the first regulator is enabled, the remaining

enable pins use a precision threshold to allow hardwired

power-upsequences. Alltheregulators, exceptLDO1, can

2

also be enabled via the I C.

Design files for this circuit board are available at

http://www.linear.com/demo

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

QuikEval is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners.

performance summary ^{Specifications are at T}_A^{= 25°C}

SYMBOL

PARAMETER

CONDITIONS

MIN

2.7

TYP

MAX

5.5

UNITS

V

Input Voltage Range

V

IN

Buck Regulator 1 Output Voltage

Buck Regulator 2 Output Voltage

Buck Regulator 3 Output Voltage

Buck 1 Enabled, I

Buck 2 Enabled, I

Buck 3 Enabled, I

= 0 ~ 1.6A

= 0 ~ 1.0A

0.62

0.937

0.648

3.17

1.13

0.62

1.756

1.746

1.206

1.819

1.259

3.30

1.38

2.08

1.44

3.43

1.27

1.38

1.854

3.399

BUCK1

BUCK2

BUCK3

BUCK-BOOST

LDO1

BUCK1

BUCK2

BUCK3

Buck-Boost Regulator Output Voltage Buck-Boost Enabled, I

= 0 ~ 1.2A

BUCK-BOOST

LDO1 Regulator Output Voltage

LDO2 Regulator Output Voltage

LDO3 Regulator Output Voltage

LDO4 Regulator Output Voltage

LDO1 Is Always On, I

= 0 ~ 25mA

1.20

LDO1

LDO2 Enabled, I

LDO3 Enabled, I

LDO4 Enabled, I

= 0 ~ 200mA

1.206

1.80

LDO2

LDO3

LDO4

= 0 ~ 200mA

LDO3

2.80

LDO4

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1

DEMO MANUAL

DC1808B-A/DC1808B-B

Quick start proceDure

1. Ensure that JP1 to JP3, and SW1 are in their default

positions, as shown in Figure 1. Set PS1 to 5V and turn

on. The RST0 LED should light until LDO1 comes on,

and the PGOOD LED should come on and stay on

LTC3589, LTC3589-1, AND LTC3589-2 FUNCTIONAL

COMPARISON

Table1summarizesthefunctionaldifferencesbetweenthe

LTC3589, LTC3589-1, and LTC3589-2.

NOTE: The DV voltage level may be selected on the

CC

Table 1. LTC3589, LTC3589-1 and LTC3589-2 Functional Differences

DC590B. This is done by setting the V

jumper, JP6,

CCIO

LTC3589

LTC3589-1

LTC3589-2

on the DC590B board to one of the following settings:

3.3V, 5V, removed for 2.7V, or set to external if an external

Power-On Inhibit

Enable Delay

1 Second

<2ms

supply is used. Please set DV to 5V.

CC

Buck2 Current Output 1A

Buck3 Current Output 1A

1.2A

2. Start the Linear Technology QuikEval™ program. This

programshouldautomaticallydetectthepresenceofthe

LTC3589EUJ-xdemoboard(DC1808B-A/1808B-B)and

activate the appropriate GUI, as seen in Figure 3. The

GUI reads back the current voltages of the regulators.

PGOOD Fault Timeout Enabled by

Default.

Disabled by

Default.

Disabled by

Default.

2

I C Disable.

I C Enable.

PWR_ON to WAKE

Delay

50ms

2ms

LDO1 should read 1.2V, and V should read 5V; all

IN

LDO3 V

LDO4 V

1.8V

2.8V

OUT

others should be 0V.

1.8V, 2.5V,

2.8V*, 3.3V

1.2V*, 1.8V,

2.5V, 3.2V

1.2V*, 1.8V,

2.5V, 3.2V

OUT

*Indicates Default V

OUT

3. Press the PB1 button on the DC1808B-A/1808B-B for

more than 0.5s; all of the power supplies should come

up and the displayed GUI page should match Figure 3.

The sequencing for these supplies was set by Linear

Technology, using resistor divider networks from the

supply outputs to control the ENx lines.

2

Default LDO4 Enable LDO34_EN Pin I C

I C

Wait to Enable Until

Output < 300mV

Yes, by Default. Yes, by Default. No, by Default.

2

I C Select.

Insert 2k Discharge

Resistor When

Disabled

Yes, if Start-Up Yes, if Start-Up Always

Is Wait to Enable Is Wait to Enable

Until Output < Until Output <

300mV

4. Eachofthesuppliescanbeloadedtotesttheregulators,

butbeawarethatLDO2~4ontheDC1558Aarepowered

from V , and the dissipation can be significant. If

IN

significant current is desired from these regulators,

care with input voltage selection will be required.

5. Press and hold the PB1 button for more than 5s, and

all of the regulators, except LDO1, will shut down. The

GUI will show the voltages for all regulators, other than

always-on LDO1, as 0V.

6. Refer to the Using the LTC3589EUJ Software section

formoreinformationonhowtocontrolthedeviceusing

the LTC3589EUJ control window.

7. Refer to the LTC3589EUJ data sheet for more details

on how the LTC3589EUJ operates.

8. When done, close the LTC3589EUJ GUI and turn off

all loads and power supplies.

dc1808babbf

2

DEMO MANUAL

DC1808B-A/DC1808B-B

Quick start proceDure

Note: All connections from equipment should be Kelvin connected directly to the board pins to

which they are connected on this diagram. Any input or output leads should be twisted-pair.

Figure 1. Proper Measurement Equipment Setup

Figure 2. Measuring Input or Output Ripple

dc1808babbf

3

DEMO MANUAL

DC1808B-A/DC1808B-B

using the Ltc3589euJ software

Introduction

View the LTC3589EUJ Product Page

The LTC3589EUJ GUI provides control of most aspects

of operation of the LTC3589EUJ. The LTC3589EUJ GUI

also provides a means to manage the feedback divider

resistors, turn the regulators on and off manually, and

even to experiment with sequencing.

This button opens your default Internet browser, and

searches the Linear Technology Corporation website for

information on the LTC3589EUJ when an Internet con-

nection is available.

Buck1 ~ Buck3, Buck-Boost, and LDO2~LDO4 Sections

The LTC3589EUJ GUI is composed of four forms:

These sections control most aspects of the regulator

operation. Some of the controls for the regulators are on

the Advanced Settings form. Please consult the data sheet

for operation of these bits.

n

The LTC3589-1 (DC1808B-A) or LTC3589-2

(DC1808B-B) form (Figure 3) is brought up by the

QuikEval program.

n

The Manage Resistors form (Figure 4) is brought up by

pressing the Change Resistor Divider Networks button

on the LTC3589 form.

In the Buck1~ Buck3 and LDO2 sections, there is a but-

ton labeled Go. Whenever the DAC sliders are changed or

the regulator is switched between normal and standby,

the appropriate control registers are changed. But, the

LTC3589 will wait for the Go button to be pressed before

going to the new voltage.

n

TheAdvancedSettingsform(Figure5)isbroughtupby

pressing the Advanced Settings button on the LTC3589

form.

n

The Sequencing form is brought up by pressing the

If the text box has a grey background, it cannot be directly

edited. A good example of this is the command registers

SCR1, OVEN, SCR2, etc., at the bottom of the LTC3589

form. These registers are changed by the various controls

on the form.

Change LTC3589 Sequencing button.

The sequencing form, in turn, contains two tabs: Direct

(Figure 6) and Table (Figure 7). These allow direct control

and table based sequencing, respectively.

The Auto Readback Enabled button determines if the IRQ-

STAT and PGSTAT values are automatically read back. If

automatic readback is disabled, the Readback button will

do a one-time readback.

SW1, positions 1 to 5, sets the source of the ENx signals

to the preselected resistor networks or to the on-board

microcontroller. SW1, positions 1 to 5, should be set to

Resistor Control for normal mode, and µC Control for

sequence modes (Direct and Table).

The Auto Update Enabled button determines if the com-

mand registers are automatically sent to the LTC3589 on

change, and if the values of these registers are automati-

callyreadback.Ifautomaticupdateisdisabled,theUpdate

All button will update all the command registers and read

back the values.

SW1, position 6, controls the source of PWR_ON.

Resistor Control makes the source the buck-boost regula-

tor output. µC Control makes it controlled by the on-board

microcontroller. This switch should be set to Resistor

Control for normal mode and µC Control for sequence

modes.

For all the automatic update modes, an internal 100ms

timer is used, so all values will be updated every 100ms,

if enabled.

dc1808babbf

4

DEMO MANUAL

DC1808B-A/DC1808B-B

using the Ltc3589euJ software

Figure 3. Main Form

Figure 4. Manage Resistors Form

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5

DEMO MANUAL

DC1808B-A/DC1808B-B

using the Ltc3589euJ software

Interrupts and Status

Advanced Settings Button

The current state of IRQSTAT and PGSTAT are displayed This button brings up the Advanced Settings form

on the right. If an interrupt is pending, the IRQ LED (Figure 5), which allows the control of several less used

(D1) on the DC1808B-A/1808B-B demo board will light. bits. Any changes made in this form will immediately be

The interrupt box will change color to red, and indicate reflected in the appropriate command registers on the

Interrupt Pending. To clear the interrupt, press the Clear LTC3589 form. However, if Auto Update Enabled is dis-

Interrupt button.

abled, the value will not be sent to the LTC3589EUJ until

auto update is re-enabled or Update All is pressed.

Figure 5. DC1808B-A (LTC3589EUJ-1) Advanced Settings Form

Figure 6. DC1808B-B (LTC3589EUJ-2) Advanced Settings Form

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6

DEMO MANUAL

DC1808B-A/DC1808B-B

using the Ltc3589euJ software

Mode Display

Start-Up

The start-up section determines what the GUI will do at

start-up, load default or stored command register, regula-

tor resistors and auto update states.

This box displays the current operating mode. The value

of this box can be changed in the sequence form.

Load Factory Defaults

Shutdown

The factory default values for the command registers,

regulatorresistorsandautoupdatestatesareimmediately

loaded.

The shutdown section determines what the GUI will do at

shutdown, store the current command register, regulator

resistor resistors and auto update values or not.

Load Stored Values

Change Resistor Divider Networks Button

Thestateofthecommandregisters,regulatorresistorsand

auto update states can be saved to a file and reused. This

button causes the saved states to be loaded immediately.

ThisbuttonbringsuptheManageFeedbackDividerResistor

Valuesform(Figure4),whichallowsfordifferentfeedback

dividerresistorvalues. Anychangesmadeinthisformwill

immediately be reflected in the appropriate voltage value

boxes on the LTC3589 form. It is the user’s responsibility

to ensure that the values in this form are the same as the

values of the actual resistors on the demo board.

Save Current Values

Immediately saves the state of the command registers,

regulator resistors and auto update states to file.

Figure 7. Sequence, Direct Form

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7

DEMO MANUAL

DC1808B-A/DC1808B-B

using the Ltc3589euJ software

Change LTC3589 Sequencing Button

Neither direct nor sequence mode can be enabled from

the other mode. You must be in normal mode to enable

direct or sequence mode.

This brings up the sequencing form which has two tabs

Direct (Figure 6) and Table (Figure 7).These allow the

direct control of the regulator on/off (Direct tab), or set

up a sequence that will be downloaded to the on-board

microcontrollertosettheregulatorsequencing(Tabletab).

Returning to normal mode explicitly, by using a button

to disable direct or sequence modes, resets the regula-

tor states to the default. However, if you return to normal

modebycompletingadownloadedsequence,theregulator

states are not reset.

Both the direct and the table modes require that all posi-

tions of the SW1 dipswitch be in the µC Control position.

Figure 8. Sequence, Table Form

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8

DEMO MANUAL

DC1808B-A/DC1808B-B

using the Ltc3589euJ software

Direct

controlled at a time. For example, WAKE could start all

regulators, or just one. If PWR_ON is not asserted in the

sequence, the sequence will execute, but the regulators

will shut down after 5s.

To directlycontroltheon/offstateoftheregulators,choose

the Direct tab, enable direct mode (the mode display on

the LTC3589 form should change to direct). Ensure that

the dipswitch positions are in the correct state and check

the appropriate boxes. The regulators can now be turned

on and off directly.

Once a sequence has been downloaded, and sequence

mode has been set, press the PB1 button to start the

sequence. In sequence mode it is not necessary press

the PB1 button for 0.5s.

The Measured Voltage boxes are live and update on the

100ms update timer.

The level of the WAKE signal is the same as the level of

the V signal, that is, if V is 3V, WAKE will assert at 3V.

So, when choosing the threshold voltage for WAKE, make

IN

Table

To set up a sequence for the power supplies to power up,

choose the Table tab. Do not enable sequence mode until

a sequence table has been downloaded. Sequence tables

can only be downloaded in normal mode.

sure that you do not set it higher than the V voltage. In

IN

fact, you should choose a voltage that is ≈ V

.

IN/2

When PWR_ON is asserted in the sequence, the on-board

microcontroller determines that the sequence is done and

sets the state to normal (without resetting the states of

the regulators). The sequence / table form can now be

closed. If you wish to rerun the sequence, hold down PB1

for more than 5s, until the regulators shut off. Go to the

sequence / table form, and enable sequence mode. It is

not necessary to download the sequence table again, as

it is still the in the on-board microcontroller’s memory.

Now, just press the PB1 button to restart the sequence.

Some error checking is done on the table before down-

loading, such as ensuring that at least one regulator is

controlled by WAKE, but in general, the user must ensure

that the sequence table is reasonable.

Inparticular,alwaysensurethatoneregulatoriscontrolled

by WAKE and that at least one regulator is used in the

particularsequencecontrolsPWR_ON. Itisnotnecessary

that you use all regulators, nor that only one regulator is

dc1808babbf

9

DEMO MANUAL

DC1808B-A/DC1808B-B

parts List

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

2

3

4

5

6

5

6

5

3

1

C1, C11, C14, C17, C21

C2, C3, C4, C5, C6, C7

C10, C13, C16, C19, C20

C12, C15, C18

C22

CAP, CHIP, X5R, 10µF, 20ꢀ, 6.3V, 0603

CAP, CHIP, X5R, 1µF, 10ꢀ, 10V, 0402

CAP, CHIP, X5R, 22µF, 20ꢀ, 6.3V, 0805

CAP, CHIP, COG, 10pF, 0.5pF, 50V, 0402

CAP, CHIP, COG, 4.7pF, 0.5pF, 50V, 0402

TDK, C1608X5R0J106M

MURATA, GRM155R61A105KE15D

TAIYO-YUDEN, JMK212ABJ226MG

TDK, C1005C0G1H100D

AVX, 04025A4R7DAT2A

L1

IND, SMT, 2.7µH, 47mΩ, 30ꢀ, 2.20A,

4.8mm × 4.8mm

WÜRTH, 7440420027

7

8

2

1

L2,L3

L4

IND, SMT, 1.5µH, 36mΩ, 20ꢀ, 5.8A,

4.2mm × 4.2mm

COILCRAFT, XFL4020-152ME

COILCRAFT, XFL4020-102ME

IND, SMT, 1.0µH, 29mΩ, 20ꢀ, 6.5A,

4.2mm × 4.2mm

9

2

1

2

1

4

1

9

R1, R55

RES, CHIP, 511kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 1.02MEGΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 604kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 768kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 316kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 1MEGΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 20Ω, 5ꢀ, 1/16W, 0402

RES, CHIP, 787kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 681kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 422kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 715kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 10kΩ, 1ꢀ, 1/16W, 0402

VISHAY, CRCW0402511KFKED

VISHAY, CRCW04021M02FKED

VISHAY, CRCW0402604KFKED

VISHAY, CRCW0402768KFKED

VISHAY, CRCW0402316KFKED

VISHAY, CRCW04021M00FKED

VISHAY, CRCW040220R0JNED

VISHAY, CRCW0402787KFKED

VISHAY, CRCW0402681KFKED

VISHAY, CRCW0402422KFKED

VISHAY, CRCW0402715KFKED

VISHAY, CRCW040210K0FKED

10

11

12

13

14

15

16

17

18

19

20

R2

R3, R37

R4, R36

R27

R28

R29, R32, R35, R38

R30

R31

R33

R34

R43, R45, R47, R49, R50, R51,

R53, R57, R58

21

22

3

1

R44, R46, R54

R48, R52

RES, CHIP, 18.2kΩ, 1ꢀ, 1/16W, 0402

RES, CHIP, 9.09kΩ, 1ꢀ, 1/10W, 0402

VISHAY, CRCW040218K2FKED

VISHAY, CRCW04029K09FKED

Additional Demo Board Circuit Components

1

2

4

2

C8, C9, C25, C27

CAP, CHIP, X7R, 0.1µF, 10ꢀ, 16V, 0402

CAP, CHIP, COG, 1000pF, 5ꢀ, 50V, 0402

CAP, CHIP, X5R, 2.2µF, 20ꢀ, 6.3V, 0402

DIODE, LED, SUPER RED DIFF, 0603 SMD

LED, AMBER HIGH BRIGHT ESS SMD, 0603

DIODE, SCHOTTKY, SMT, 20V, 0.5A, SOD123

DIODE, Si SWITCHING, 100V, 80mA, SOD123

MOSFET, 60V, 10Ω, 115A, SOT-23

MURATA, GRM155R71C104KA88S

TDK, GRM1555C1H102J

C26, C28

3

2

C23, C24

MURATA, GRM155R60J225ME95D

LUMEX, SML-LX0603SRW-TR

PANASONIC, LNJ436W82RA

ON SEMICONDUCTOR, MBR0520LG

ON SEMICONDUCTOR, MMSD4148G

FAIRCHILD, 2N7002L

4

2

D1, D3

5

1

D2

6

1

D4

7

1

D5

8

1

M1

9

1

PB1

SWITCH TACTILE, SPST-NO, 0.05A, 12V

BITRANS., GP, SS, NPN, 40V, SOT-23

RES, CHIP, 1kΩ, 5ꢀ, 1/16W, 0402

PANASONIC, EVQPNF04M

10

11

12

13

1

Q1

ON SEMICONDUCTOR, MMBT3904LG

VISHAY, CRCW04021K00JNED

VISHAY, CRCW0402100KJNED

VISHAY, CRCW040210K0JNED

4

R5, R10, R39, R56

R6, R7, R8, R9, R40

5

RES, CHIP, 100kΩ, 5ꢀ, 1/16W, 0402

RES, CHIP, 10kΩ, 5ꢀ, 1/16W, 0402

11

R11, R12, R13, R14, R15, R16,

R17, R18, R19, R20, R21

dc1808babbf

10

DEMO MANUAL

DC1808B-A/DC1808B-B

parts List

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

14

3

2

1

R22, R23, R25

R24, R26

R41, R42

SW1

RES, CHIP, 5.1kΩ, 5ꢀ, 1/16W, 0402

VISHAY, CRCW04025K10JNED

15

RES, CHIP, 4.7kΩ, 5ꢀ, 1/16W, 0402

RES,CHIP, 100kΩ , 1ꢀ, 1/16W, 0402

VISHAY, CRCW04024K70JNED

VISHAY, CRCW0402100KFKED

16

17

SWITCH, SMT, SPDT, 6 Pos. DIP, 37mm × 8mm CTS ELECTROCOMPONENTS, 204-126-LPST

2

18

U2

I C EEPROM

MICROCHIP, 24LC025-I/ST

19

U3

PIC MICROCONTROLLER, 6mm × 6mm QFN16

MICROCHIP, PIC16F722-I/ML

LINEAR TECHNOLOGY, LTC3204BEDC-5

20

U4

LOW NOISE REGULATED CHARGE PUMP IN

2mm × 2mm DFN

Hardware: For Demo Board Only

1

2

3

4

5

6

7

8

9

18

16

1

E1-E4, E6-E7, E9-E12, E27-E34

TURRET, 0.09, DIA

MILL-MAX, 2501-2-00-80-00-00-07-0

MILL-MAX, 2308-2-00-80-00-00-07-0

SULLINS, NRPN032PAEN-RC

MOLEX, 87831-1420

E5, E8, E13-E26

TURRET, 0.061, DIA

J2

HEADER, 2×3, 0.079, DOUBLE ROW

CONN, HEADER, 14 POS, 2mm, VERT GOLD

HEADER, 1×4 PIN, 0.079, SINGLE ROW

HEADER, 1×3 PIN, 0.079, SINGLE ROW

SHUNT, 0.079", CENTER

1

J3

2

JP1, JP2

JP3

SULLINS, NRPN041PAEN-RC

SULLINS, NRPN031PAEN-RC

SAMTEC, 2SN-KB-G

1

3

JP1-JP3

4

STAND-OFF, NYLON, 0.375" TALL, (SNAP-ON)

FAB, PRINTED CIRCUIT BOARD

KEYSTONE, 8832 (SNAP-ON)

DEMO CIRCUIT 1808B-1

1

DC1808B-A Required Circuit Components

U1

1

8-OUTPUT REGULATOR WITH SEQUENCING

LINEAR TECHNOLOGY, LTC3589HUJ-1

LINEAR TECHNOLOGY, LTC3589HUJ-2

2

AND I C

DC1808B-B Required Circuit Components

U1

1

8-OUTPUT REGULATOR WITH SEQUENCING

2

AND I C

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11

DEMO MANUAL

DC1808B-A/DC1808B-B

schematic Diagram

1

2

1

2

1

2

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12

DEMO MANUAL

DC1808B-A/DC1808B-B

schematic Diagram

3

1

2

dc1808babbf

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

13

DEMO MANUAL

DC1808B-A/DC1808B-B

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:

Thisdemonstrationboard(DEMOBOARD)kitbeingsoldorprovidedbyLinearTechnologyisintendedforuseforENGINEERINGDEVELOPMENT

OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete

in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety

measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union

directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date

of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU

OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS

FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims

arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all

appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or

agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and

observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

dc1808babbf

LT 1012 • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

14

●

 LINEAR TECHNOLOGY CORPORATION 2012

(408) 432-1900 FAX: (408) 434-0507 www.linear.com


型号：	LTC3589EUJ-1
厂家：	Linear
描述：	8-Output Regulator with Sequencing and I2C
文件：	总14页 (文件大小：1960K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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