PM6686TR STMicroelectronics, PM6686TR Datasheet - Page 7

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

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

PM6686
2
2.1
2.2
Pin settings
Connections
Figure 2.
Pin descriptions
Table 2.
N°
1
2
3
4
5
6
EN_LDO
VREF2
VREF3
TON
VCC
VIN
Pin
Pin connection (through top view)
Pin descriptions
Internal 2 V high accuracy voltage reference. It can deliver 50 μA. Loading
VREF2 can affect FB and output accuracy. Bypass to GND with a 100 nF
capacitor.
Frequency selection pin. It provides a selectable switching frequency,
allowing three different values of switching frequencies for the switching
sections.
Controller supply voltage input. Bypass to GND with a 1 μF capacitor.
Enable input for the linear regulator. The LDO is enabled if
EN_LDO is > 1.6 V and is disabled if EN_LDO < 1 V.
Internal 3.3 V high accuracy voltage reference. It can deliver 5 mA if
bypassed to GND with a 10 nF capacitor. If not used, it can be left floating.
Device supply voltage pin. VIN is used in the on-time generators of the two
switching controllers. VIN is also used to power the linear regulator when the
switchover function is not active. Connect VIN to the battery input and
bypass with a 1 µF capacitor.
Doc ID 15281 Rev 4
Function
Pin settings
7/50