SQ29090TXQ
- Parameters
- Features
- Description
| Part number | SQ29090TXQ |
|---|---|
| Channel(#) | 1 |
| Vin (min) (V) | 2.9 |
| Vin (max) (V) | 16 |
| Switching frequency (min)(kHz) | 510(RMODE=0Ω)/690(RMODE=30.1Ω)/900(RMODE=60.4Ω) |
| Switching frequency (max)(kHz) | 690(RMODE=0Ω)/910(RMODE=30.1Ω)/1100(RMODE=60.4Ω) |
| Vout (min) (V) | 0.6 |
| Vout (max) (V) | 5.5 |
| Iout (max) (A) | 20 |
| Vout2 (min)(V) | |
| Vout2 (max )(V) | |
| Iout2 (max)(A) | |
| Vref accuracy (±%) | ±1.0% |
| Vout accuracy(±%) | |
| Control mode | |
| Duty cycle (max)(%) | |
| Operation mode | FCCM/PFM Selectable |
| Iq (typ) (uA) | 550 |
| Features | Remote sense, seamless ILMT, pre-bias startup, FCCM/PFM |
| Package | QFN3x4-21 |
| Operating temperature range(°C) | -40°C to 125°C |
| Functional safety category |
Wide Input Voltage Range:
§ 2.9V to 3.6V if VCC is Connected to IN
(RC filter is needed from IN to VCC)
§ 2.9V to 16V if VCC is Supplied by External Source
§ 3.6V to 16V if VCC is Supplied by Internal LDO
Internal 8.6mΩ Power Switch and 2.5mΩ Synchronous Rectifier
Accurate Feedback Set Point: 0.6V ±1% from -40°C to 125°C
Differential Remote Sense
Fast Transient Response
600kHz, 800kHz and 1000kHz Operating Frequency
Selectable Automatic High-efficiency Discontinuous Operating Mode at Light Loads
Programmable Valley Current Limit
Reliable Built-in Protections:
§ Automatic Recovery for Input Under-voltage (UVLO), Output Under-voltage (UVP) and Over-temperature (OTP) Conditions
§ Cycle-by-cycle Valley and Peak Current Limit (OCP)
§ Hic-cup Mode after 128 Consecutive Cycles Valley Current Limit Protection
§ Cycle-by-cycle Reverse Current Limit
Internal and Adjustable Soft-start to Limits Inrush Current
Smoothly Startup with Pre-biased VOUT
Power Good Output Monitor for Under-voltage and Over-voltage
The SQ29090 is a high-efficiency synchronous step-down DC-DC regulator featuring internal power and synchronous rectifier switches capable of delivering 20A of continuous output current over a wide input voltage range, from as low as 2.9V up to 16V. The output voltage is adjustable from 0.6V to 5.5V.
Technical Documentation
| Title | Date |
|---|---|
| Silergy_Catalog_Q2_2026 | 2026-06-12 |
