PM6686TR-4

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PM6686TR-4 Dual step-down controller with adjustable voltages, adjustable LDO and auxiliary charge pump controller for notebook:

5.5 V to 28 V input voltage range
Dual fixed OUT1 = 1.5 V/5 V and OUT2 = 1.05 V / 3.3 V outputs or adjustable OUT1 = 0.7 V to 5.5 V and OUT2 = 0.7 V to 2.5 V outputs, ± 1.5% accuracy over valley regulation

SKU: SLY-IC265 Category: CHIPS

Product Description

Description:

PM6686 is a dual step-down controller specifically designed to provide extremely high efficiency conversion, with lossless current sensing technique.
The constant on-time architecture assures fast load transient response and the embedded voltage feed-forward provides nearly constant switching frequency operation. Pulse skipping technique increases efficiency at very light load. Moreover a minimum switching frequency of 33 kHz is selectable to avoid audio noise issues.
The output voltages OUT1 and OUT2 can be programmed to regulate 1.5 V/5 V and 1.05 V/3.3 V outputs respectively or can deliver two adjustable output voltages.
TECHNICAL SHEET: https://pdf1.alldatasheet.com/datasheet-pdf/view/514360/STMICROELECTRONICS/PM6686TR.html

Features:

■5.5 V to 28 V input voltage range

■Dual fixed OUT1 = 1.5 V/5 V and OUT2 = 1.05 V / 3.3 V outputs or adjustable OUT1 = 0.7 V to 5.5 V and OUT2 = 0.7 V to 2.5 V outputs, ± 1.5% accuracy over valley regulation

■Low-side MOSFETs’ RDS(on) current sensing and programmable current limit

■Constant ON-time control

■Frequency selectable

■Soft-start internally fixed at 2 ms and soft-stop

■Selectable pulse skipping at light loads

■Selectable minimum frequency (33 kHz) in pulse skip mode

■Independent Power Good and EN signals

■Latched OVP and UVP

■Charge pump feedback

■Fixed 3.3 V/5.0 V, or adjustable output 0.7 V to 4.5 V, ± 1.5% (LDO): 200 mA

■3.3 V reference voltage ± 2.0%: 5 mA

■2.0 V reference voltage ± 1.0%: 50 μA