PM6686TR STMicroelectronics, PM6686TR Datasheet - Page 25

IC CTLR DUAL STEP DOWN VFQFPN32

PM6686TR

Manufacturer Part Number
PM6686TR
Description
IC CTLR DUAL STEP DOWN VFQFPN32
Manufacturer
STMicroelectronics
Datasheet

Specifications of PM6686TR

Applications
Controller, Notebook Computers
Voltage - Input
5.5 ~ 28 V
Number Of Outputs
2
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-VFQFN, 32-VFQFPN
Output Voltage
5.5 V
Output Current
100 mA
Output Power
4.3 mW
Input Voltage
5.5 V to 28 V
Switching Frequency
33 KHz
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-8522-2

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PM6686
Figure 45. Resistor divider to configure the output voltage
Where R1, R2 are the resistors of the FB1 pin divider, as shown in Figure 2.
OUT2 output voltage is programmed with REFIN2 pin. Fixed output voltage is selected
connecting REFIN2 to VREF3 (OUT2 = 1.05 V) or to VCC (OUT2 = 3.3 V).
When the REFIN2 voltage is between 0.7 V and 2.5 V, OUT2 output voltage tracks REFIN2
voltage. When REFIN2 is lower than 0.5 V the section is turned OFF.
Table 7.
Output
OUT1
OUT2
 
Switching output voltages configuration
control pin
CO UT
REFIN2
VOUT
FB1
Doc ID 15281 Rev 4
Resistor divider
connected to
Control pin
Ext source
VREF3
R2
R1
GND
VCC
VCC
L
Operation mode
Tracking
Fixed
Fixed
Fixed
Fixed
Adj
FB1
PHASE
V
OUT
Output voltage
Device description
1
=
=REFIN2
0
1.05 V
1.5 V
3.3 V
7 .
5 V
V
R
R
1
2
+
25/50
1

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