| Part number | SQ29045NDG |
|---|---|
| Channel(#) | |
| Vin (min) (V) | 6 |
| Vin (max) (V) | 16 |
| Switching frequency (min)(kHz) | 400 |
| Switching frequency (max)(kHz) | 1000 |
| Vout (min) (V) | 0.35 |
| Vout (max) (V) | 5.5 |
| Iout (max) (A) | 45 |
| Vout2 (min)(V) | |
| Vout2 (max )(V) | |
| Iout2 (max)(A) | |
| Vref accuracy (±%) | 1 |
| Vout accuracy(±%) | |
| Control mode | |
| Duty cycle (max)(%) | |
| Operation mode | |
| Iq (typ) (uA) | |
| Features | Flexible configurations via PMBus interface |
| Package | LGA5X6-30 |
| Operating temperature range(°C) | -40°C to 125°C |
| Functional safety category |
Wide Input Voltage Range: 6V to 16V
Adjustable Output Voltage with Wide Voltage Range:
Ø 0.6V to 5.5V via External Resistor Divider while operates in External Resistor Divider Mode
Ø 0.35V to 5.5V with Programmable PMBus Interface while operates in Internal Resistor Divider Mode
40A Continuous, 45A Peak Output Current Capacity
Accurate Feedback Set Point: ±1%@0.6V,TJ= 40oC to 125oC
Low RDS(ON) for Internal Switches (top/bottom): 3.0mΩ/0.9mΩ
Differential Remote Sense
Proprietary Advanced COT Control For Fast Transient Response
Startup with Pre-biased Voltage
Input/Output Voltage, Output Current and Internal Die Temperature Reporting
Programmable via the PMBus Interface
Ø Output Voltage From 0.35V to 5.5V and Vout Transition Rate
Ø Switching Frequency of 400kHz /600kHz /800kHz /1MHz
Ø Pulse-Skip or Forced-CCM Operation
Ø Soft-start and Turn On/Off Delay Time
Ø Input Under-voltage lockout (UVLO),Output current limit, Input/Output Over-voltage protection and Output Under-voltage protection(UVP) threshold
Ø Cycle-by-cycle Valley, Peak and Reverse Current Limit
Ø Selectable Hic-cup/Latch-off Mode for Output Over-current protection(OCP) and Under-voltage Protection.
Ø Selectable Auto Recovery/Latch-off Mode for Output Over-voltage protection(OVP) and Over Temperature Protection(OTP)
Ø Power Good Indicator for Under-Voltage and Over-Voltage
RoHS Compliant and Halogen Free Compact Package: LGA5×6-30
The SQ29045 is a PMBus 1.3 compliant, high efficiency synchronous step-down DC/DC regulator capable of delivering up to 45A current over a wide input voltage range from 6V up 16V.
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
DB_SQ29045NDG_1 is intended for evaluating 40A continuous, 45A Peak，16V input, 400kHz, 600kHz，800kHz or 1000kHz with PMBus interface synchronous buck regulator.
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-03-06 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |
