LTC3562

PRODUCTION

I2C Quad Synchronous Step-Down DC/DC Regulator 2 x 600mA, 2 x 400mA

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Part Models
2
1ku List Price
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Part Details

  • Four Independent I2C Controllable Step-Down Regulators (2 x 600mA, 2 x 400mA)
  • Two I2C Programmable Feedback Voltage Regulators (R600A, R400A): VFB 425mV to 800mV
  • Two I2C Programmable Output Voltage Regulators (R600B, R400B): VOUT 600mV to 3.775V
  • Programmable Modes: Pulse Skip, LDO, Burst Mode®, Forced Burst Mode Operation
  • Quiescent Current <100uA (All Regulators Enabled in LDO Mode)
  • Fixed 2.25MHz Switching Frequency (Pulse Skip Mode)
  • Slew Limiting Reduces Switching Noise
  • Power-On Reset Output for Regulator R600A
  • Small, Thermally Enhanced, 20-Lead 3mm x 3mm QFN Package
LTC3562
I2C Quad Synchronous Step-Down DC/DC Regulator 2 x 600mA, 2 x 400mA
High Efficiency Quad Step-Down Converter with I2C R600x Burst Mode Efficiency and Power Loss vs Load Current Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

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Evaluation Kits

eval board
schematic 1
DC1123A

LTC3562EUD Demo Board | Quad, I2C Programmed, 2.85V ≤ VIN ≤ 5.5V, VOUT1, 2 = 1.8V, Adjusted at 600mA; VOUT3, 4 = 1.5V, Adjustable at 400mA

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Product Details

Demonstration circuit 1123 is a I2C-programmable Quad Synchronous Step-Down DC/DC Regulator featuring the LTC3562. The demo board operates with an input voltage range of 2.85V to 5.5V. The LTC3562 features two 600mA regulators and two 400mA regulators. Two regulators (Type A) are adjusted by programming their  feedback voltages between 425mV and 800mV in 25mV. The other two regulators are adjusted by programming the output voltage between 600mV and 3.775V in 25mV steps (Type B). All four regulators operate independently and can be put into pulse skip, LDO, Burst Mode operation or forced Burst Mode operation through I2C control.


 
DC1123A
LTC3562EUD Demo Board | Quad, I2C Programmed, 2.85V ≤ VIN ≤ 5.5V, VOUT1, 2 = 1.8V, Adjusted at 600mA; VOUT3, 4 = 1.5V, Adjustable at 400mA
DC1123A - Schematic

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