L6738：Single Phase PWM Controller with Light-Load Efficiency Optimization
The L6738 is a single-phase step-down controller with integrated high-current drivers that provides complete control logic and protection to realize a DC-DC converter.
The device flexibility allows the management of conversions with power input VINas low as 1.5 V and the device supply voltage ranging from 5 V to 12 V bus.
The L6738 features a proprietary algorithm that allows light-load efficiency optimization, boosting efficiency without compromising the output voltage ripple.
The integrated 0.8 V reference allows the generation of output voltages with ±0.5% accuracy over line and temperature variations.
The oscillator is programmable up to 600 kHz.
The L6738 provides a programmable dual-level overcurrent protection and overvoltage protection. The current information is monitored across the inductor DCR.
The L6738 is available in a VFQFPN 16 3x3 mm package.
Key Features
- Flexible power supply from 5 V to 12 V bus
- Power conversion input as low as 1.5 V
- Light-load efficiency optimization
- Embedded bootstrap diode
- VIN detector
- 0.8 V internal reference
- 0.5% output voltage accuracy
- Remote GND recovery
- High-current integrated drivers
- Sensorless and programmable precise-OC sense across inductor DCR
- OV protection
- Programmable oscillator up to 600 kHz
- LS-less to manage pre-bias startup
- Adjustable output voltage
- Disable function
- Internal soft-start
- VFQFPN 16 3x3 mm package
Product Specifications
| Description | Version | Size |
|---|---|---|
| DS7008: Single-phase PWM controller with light-load efficiency optimization | 2.0 | 773 KB |
Brochures
| Description | Version | Size |
|---|---|---|
| Brochure Power management guide | 05.2016 | 4 MB |
Solution Evaluation Tools
| Part Number | Manufacturer | Description |
|---|---|---|
| STEVAL-ISA075V1 | High efficiency DC-DC converter - compact solution based on L6738 |
Sample & Buy
| Part Number | Package | Packing Type | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|
| L6738TR | VFQFPN 16 3x3x1.0 | Tape And Reel | - | - | NEC | EAR99 | PHILIPPINES |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| L6738TR | VFQFPN 16 3x3x1.0 | Industrial | Ecopack2 | md_72-wspc-vfqfpn-wspc-16-wspc-3x3x1.0-wspc-pitch-wspc-0.50_aa72-wspc-ua43ac5.pdf md_72-wspc-vfqfpn-wspc-16-wspc-3x3x1.xml |
