SLVAE36A September   2018  – July 2021 LM43600 , LM43601 , LM46001 , LM46002 , LM5160A , LM5161 , LM5165 , LM5166 , LM61460-Q1 , LM73605 , LM73605-Q1 , LM73606-Q1 , LM76003 , LMR33620 , LMR33630 , LMR36006 , LMR36015 , LMZ36002 , LMZM23600 , LMZM23601 , LMZM33602 , LMZM33603 , LMZM33606 , TPS54218 , TPS54360B , TPS54418 , TPS54424 , TPS54560B , TPS54618 , TPS55010 , TPS62148 , TPS62821 , TPS62822 , TPS62823 , TPS82130 , TPS82140 , TPS82150

 

  1.   Trademarks
  2. 1Point-of-load Architecture Considerations
  3. 2Line Voltage Transients
  4. 3Thermal limitations and power budgets
  5. 4Isolation Improving Electrical Noise Immunity
  6. 5Voltage Regulation Accuracy
  7. 6Solution Size
  8. 7Complete Solution
  9. 8References
  10. 9Revision History

Complete Solution

The DC/DC converters in Table 7-1 are ideal for powering PLCs and sub-systems. These converters feature high efficiency, good thermal performance, and tight VFB accuracy. Devices with the same package are pin compatible for design flexibility unless noted with a different feature in the comment column. Texas Instrument also has a wide variety of products and reference designs to solve design challenges for PLC applications5. Reference designs, such as the discrete power solution for AM437x Sitara family show possible ways of integrating TI devices into such sub-systems.

Table 7-1 Suggested Step-Down Converters and Modules for PLC
DeviceIout (A)Input Voltage (V)PackageComment
High Transient DC/DC
LM7600333.5-604 × 6mm QFNLow Iq, Synchronous
LMZ3600224.5-6010 × 10mm QFNPower Module
LM4600223.5-60HTSSOPLow Iq, Synchronous
LM4600113.5-60HTSSOPLow Iq, Synchronous
LM51660.53.5-653 × 3mm SONLow Iq, Synchronous
LM51650.153.5-653 × 3mm SONLow Iq, Synchronous
24-V Rail
LMZM3360663.5-3610 × 10mm QFNPower Module
LM7360553.5-364 × 6mm QFNLow Iq, Synchronous
LMZM3360334.0-367 × 9mm QFNPower Module
LMR3363033.8-362 × 3mm QFN / 8 HSOICLow Iq, Synchronous
LMZM3360224.0-367 × 9mm QFNPower Module
LMR3362023.8-362 × 3mm QFN / 8 HSOICLow Iq, Synchronous
LMZM2360114.0-363.8x3 uSIPPower Module
LM4360113.5-3616HTSSOPLow Iq, Synchronous
LMZM236000.54.0-363.8x3 uSIPPower Module
LM436000.53.5-3616HTSSOPLow Iq, Synchronous
12-V Rail
TPS5442444.5-173.5 × 3.5mm QFNFrequency synchronization
TPS6214823.0-172 × 3mm QFNTracking
TPS8213033.0-172.8.3mm uSIPPower Module
TPS8214023.0-172.8.3mm uSIPPower Module
TPS8215013.0-172.8.3mm uSIPPower Module
3.3/5V rail
TPS5461862.95-6.03 × 3mm QFNFrequency synchronization
TPS5441842.95-6.03 × 3mm QFNFrequency synchronization
TPS6282332.4-5.51.5 × 2mm QFNSmall solution w/ 470nH
TPS5421822.95-6.03 × 3mm QFNFrequency synchronization
TPS6282222.4-5.51.5 × 1.5mm QFNSmall solution w/ 470nH
TPS6282112.4-5.51.5 × 2mm QFNSmall solution w/ 470nH
Isolated
SN650512.25-5.5SOT23-6Push-Pull
TPS5501012.95-6.03x3mm QFNFly-Buck
LM516114.5-100HTSSOPFly-Buck
LM5160A24.5-654 × 4mm SONFly-Buck
DCPA series1W4.5-5.5PDIP / SOPPower Module + or +/- 5, 12, 15Vout