Product Summary

The L6728DTR is a single-phase step-down controller with integrated high-current drivers that provides complete control logic and protection to simplify the design of general DC-DC converters by using a compact DFN10 package. The L6728DTR provides a simple control loop with voltage mode EA. Applications of the L6728DTR include: Memory and termination supply, Subsystem power supply (MCH, IOCH, PCI, etc.) , CPU and DSP power supply, Distributed power supply and General DC-DC converters.

Parametrics

L6728DTR absolute maximum ratings: (1) Vcc: -0.3 to 15V (to GND) ; (2) VBOOT, VUGATE: 15V (to PHASE) , 33V (to GND) , 45V (to GND; t < 200ns) ; (3) VPHASE: -5 to 8V (to GND) , -8 to 30V (to GND; t < 200ns) ; (4) VLGATE: -0.3 to VCC+0.3V (to GND) , -0.3 to 3.6V (FB, COMP, VSEN to GND) , -0.3 to VCC+0.3V ( PGOOD to GND) .

Features

L6728DTR features: (1) Flexible power supply from 5V to 12V; (2) Power conversion input as low as 1.5V; (3) 0.8V internal reference; (4) 0.8% output voltage accuracy; (5) High-current integrated drivers; (6) Power Good output; (7) Sensorless and programmable OCP across low-side RDS (ON) ; (8) Oscillator internally fixed at 300kHz; (9) LSLess to manage pre-bias startup; (10) Adjustable output voltage; (11) Internal soft-start; (12) DFN10 package.

Diagrams

L6728DTR Circuit

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
L6728DTR
L6728DTR
STMicroelectronics
Current Mode PWM Controllers Single-Phase PWM 5V to 12V Controller
Data Sheet
0-1: $1.22
1-10: $1.13
10-100: $0.91
100-500: $0.48
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(USD)		 Quantity
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L6725A
L6725A
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Data Sheet
0-1: $1.48
1-10: $1.33
10-100: $1.09
100-250: $1.01
L6725ATR
L6725ATR
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Switching Converters, Regulators & Controllers Step-Down Controller
Data Sheet
0-1580: $0.60
1580-2500: $0.51
2500-5000: $0.48
5000-10000: $0.47
L6725TR
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0-1930: $0.63
1930-2500: $0.63
L6726A
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Data Sheet
0-1: $0.29
1-10: $0.27
10-100: $0.25
100-250: $0.24
L6726ATR
L6726ATR
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Data Sheet
0-1: $0.62
1-25: $0.52
25-100: $0.47
100-250: $0.43