Linear Technology LT3460ESC6 Manuale utente

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 545

MICROPOWER STEP-UP SWITCHING REGULATOR IN SC-70

LT3460ESC6

DESCRIPTION

Demonstration circuit 545 features the LT3460, step-up

DC/DC converter with 1.3MHz constant frequency in a SC70

package. There are two switching regulator circuits in

DC545. The 12V output boost converter (upper circuit) is de-

signed to convert 5V input to 12V output at 70mA of load

current and the SEPIC converter (lower circuit) is designed to

convert 10V ~ 16V input to 12V at 50mA.

Each circuit has a jumper for testing SHDN mode operation.

Placing the jumper (JP1 & JP2) to “Hi” enables LT3460 op-

eration and placing the jumper to “Lo” disables the LT3460

and the converter will turn off.

Design files for this circuit board are available. Call the LTC

factory.

Table 1. Performance Summary

PARAMETER CONDITION VALUE

Input Voltage Boost Converter

SEPIC Converter

10V ~ 16V

Maximum Output Current Boost Converter

SEPIC Converter

70mA

50mA

OUT

REG Boost Converter

SEPIC Converter

≅

250mV

≅

200mV

QUICK START PROCEDURE

12V OUTPUT BOOST CONVERTER (UPPER CIRCUIT)

Refer to Figure 1 for proper measurement equipment setup and follow the procedure below:

1. Connect the input power supply (set at 5V) to

Vin

and

GND

pins of the

boost converter

2. Turn on the input power supply and observe the

output voltage, the output voltage should read

≅

12V

3. Turn on the load preset at

70mA

. The input cur-

rent should read around

≅

200mA and the output

voltage should be 12.1V

0.25V.

4. Check the output ripple using the oscilloscope (re-

fer to Figure 3). The output ripple should not be

greater than 60mV. Also check the switching fre-

quency, it should be

≅

1.3MHz.

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 545

MICROPOWER STEP-UP SWITCHING REGULATOR IN SC-70

12V OUTPUT SEPIC CONVERTER (LOWER CIRCUIT)

Refer to Figure 2 for proper measurement equipment setup and follow the procedure below:

1. Connect the input power supply (set at 10V) to the

Vin

and

GND

pins of the

SEPIC

converter

2. Turn on the input power supply. The output volt-

ages should read 0V.

3. Turn on the load box preset at 50mA. The input

current should read around

≅

75mA and the out-

put voltage should now read 12.1V

0.20V.

4. Slowly change the input power supply voltage

from 10V to 16V while observing the output volt-

age. The output should stay within 12.1V

0.20V.

5. Observe the input current at 16V, it should read

around 50mA.

6. Change the input power supply back to 10V and

check the output ripple using the oscilloscope (re-

fer to Figure 3). The output ripple should not be

greater than 60mV. Also check the switching fre-

quency, it should be

≅

1.3MHz.

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 545

MICROPOWER STEP-UP SWITCHING REGULATOR IN SC-70

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 545

MICROPOWER STEP-UP SWITCHING REGULATOR IN SC-70

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Analog Devices Inc.:

DC545A

Altri manuali Linear Technology Scheda madre

Linear Technology

Linear Technology DC1959A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1999A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1662A Manuale utente

Linear Technology

Linear Technology DC1525B-D Guida rapida alla configurazione

Linear Technology

Linear Technology DC861A-A Manuale utente

Linear Technology

Linear Technology DC1403A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1744A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1729A Guida rapida alla configurazione

Linear Technology

Linear Technology DC776 Manuale utente

Linear Technology

Linear Technology DC2249B Guida rapida alla configurazione

Linear Technology

Linear Technology DC1552A Guida rapida alla configurazione

Linear Technology

Linear Technology DC890B Manuale utente

Linear Technology

Linear Technology DC2442A Manuale utente

Linear Technology

Linear Technology QuikEval DC1718A Manuale utente

Linear Technology

Linear Technology DC2007A-A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1555B Guida rapida alla configurazione

Linear Technology

Linear Technology DC1565A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1743A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1696 Guida rapida alla configurazione

Linear Technology

Linear Technology DC1620A Guida rapida alla configurazione

Linear Technology

Linear Technology DC1962C Guida rapida alla configurazione

Linear Technology

Linear Technology DC708 Manuale utente

Linear Technology

Linear Technology DC2183A Guida rapida alla configurazione

Linear Technology

Linear Technology DC2026 Guida rapida alla configurazione

Manuali Scheda madre popolari di altre marche

DFI

DFI SD170 Manuale utente

ASROCK

ASROCK ROMED8-2T Manuale utente

Asus

Asus P2L97A Manuale utente

Winmate

Winmate IC70 Manuale utente

Asus

Asus MES-B Manuale utente

Grantech

Grantech SYS8F377VGGA-3OMN Manuale utente

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Manuale utente

Gigabyte

Gigabyte GA-9IVDT Manuale utente

Texas Instruments

Texas Instruments ADS8372EVM Manuale utente

Commell

Commell MS-C73 Manuale utente

IBT Technologies

IBT Technologies MB860 Manuale utente

Nvidia

Nvidia TEGRA DG-04927-001_V01 Manuale utente

Biostar

Biostar M7VIT Bravo Istruzioni per l'uso e l'installazione

Intel

Intel D33217CK Manuale utente

Asus

Asus F1A55-M LX PLUS R2.0 Manuale utente

EPC

EPC EPC9147C Manuale utente

Asus

Asus EX-B760M-V5 D4 Manuale utente

EPOX

EPOX MU-8KHA0010 Manuale utente