Download
Share
Print this page
Linear LTM4636 Manual
  1. Manuals
  2. Brands
  3. Linear Manuals
  4. Controller
  5. LTM4636
  6. Manual

Linear LTM4636 Manual

40a dc/dc µmodule regulator
Hide thumbs Also See for LTM4636:
1
2
3
4
5
6
7
8

Advertisement

Quick Links

Download this manual
DESCRIPTION
Demonstration circuit 2230A-A features the
a 40A high efficiency, switch mode step-down power
µModule
regulator. The input voltage range is from 4.7V to
®
15V. For input voltage range from 4.7V to 5.5V, short PV
pin to V
pin with R8 = R21 = 0Ω and remove R17. The
IN
output voltage range is 0.6V to 3.3V. Derating is necessary
for certain V
, V
, frequency and thermal conditions. The
IN
OUT
board operates in continuous conduction mode in heavy
load conditions. For high efficiency at low load currents,
the MODE_PLLIN jumper selects pulse-skipping mode for
noise sensitive applications or Burst Mode
less noise sensitive applications. The MODE_PLLIN pin
BOARD PHOTO
DEMO MANUAL DC2230A-A
40A DC/DC µModule Regulator
LTM
4636EY,
also allows the LTM4636 to synchronize to an external
®
clock signal. DC2230A-A has the option of choosing both
internal and external compensation circuit for LTM4636.
Tying the PHASMD pin to different voltage generates cer-
CC
tain phase difference between MODE_PLLIN and CLKOUT.
The LTM4636 data sheet must be read in conjunction with
this demo manual prior to working on or modifying demo
circuit DC2230A-A.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2230A-A
operation in
®
L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and μModule are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
LTM4636
dc2330aaf
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the LTM4636 and is the answer not in the manual?

Questions and answers

Related Manuals for Linear LTM4636

Summary of Contents for Linear LTM4636

  • Page 1 Burst Mode operation in ® L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and μModule are registered less noise sensitive applications. The MODE_PLLIN pin trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.

  • Page 2: Quick Start Procedure

    2. With power off, connect the input power supply, load 6. (Optional) LTM4636 can be synchronized to an external and meters as shown in Figure 1. Preset the load to 0A clock signal. Place the JP1 jumper on EXT_CLK and and V supply to 12V.
  • Page 3 DEMO MANUAL DC2230A-A QUICK START PROCEDURE – LOAD – – Figure 1. Measurement Setup of DC2230A-A – dc2330aaf...
  • Page 4 DEMO MANUAL DC2230A-A QUICK START PROCEDURE OUTPUT CURRENT (A) dc2230aa F02 Figure 2. Measured Efficiency at V = 5V/12V, V = 1V, f = 350kHz, CCM 50mV/DIV OUT_STEP 10A/DIV Figure 3. Measured Load Transient, V = 12V, V = 1.0V, I = 0A to 10A STEP dc2230aaf...
  • Page 5 DEMO MANUAL DC2230A-A QUICK START PROCEDURE Figure 4. Thermal Image of LTM4636, V = 12V, V = 1.0V, I = 40A, Ambient Temperature = 23.0°C, No Forced Airflow LOAD dc2330aaf...

  • Page 6: Parts List

    RES., 34.8k, 1/10W, 1%, 0603 VISHAY, CRCW060334K8FKEA RES., SENSE, 0.01Ω, 1/2W, 1%, 2010 VISHAY, WSL2010R0100FEA LTM4636EY#PBF , 16mm × 16mm × 5.01mm BGA LINEAR TECH., LTM4636EY#PBF Additional Demo Board Circuit Components COUT9 (OPT) CAP ., OPTION, D3L COUT10, COUT15, COUT16 (OPT) CAP ., OPTION, 1210...

  • Page 7: Schematic Diagram

    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.
  • Page 8 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT 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.