PM6680A STMicroelectronics, PM6680A Datasheet - Page 2

IC CTLR DUAL SYNC STDN 5X5VFQFPN

PM6680A

Manufacturer Part Number
PM6680A
Description
IC CTLR DUAL SYNC STDN 5X5VFQFPN
Manufacturer
STMicroelectronics
Datasheet

Specifications of PM6680A

Applications
Controller, Embedded Computer System
Voltage - Input
6 ~ 36 V
Number Of Outputs
2
Voltage - Output
0.9 ~ 5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
32-VFQFN, 32-VFQFPN
For Use With
497-6379 - BOARD EVALUATION FOR PM6680A497-6378 - BOARD EVALUATION FOR PM6680497-6425 - BOARD EVAL BASED ON PM6680A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PM6680A
Manufacturer:
ST
Quantity:
3 000
Part Number:
PM6680A
Manufacturer:
ST
0
Part Number:
PM6680ATR
Manufacturer:
STMicroelectronics
Quantity:
10 000
Part Number:
PM6680ATR
Manufacturer:
ST
0
Contents
Contents
1
2
3
4
5
6
7
8
2/48
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
2.2
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1
3.2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
Monitoring and protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Constant On time PWM control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Constant On time architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Output ripple compensation and loop stability . . . . . . . . . . . . . . . . . . . . . 21
Pulse skip mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
No-audible skip mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Current limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Soft start and soft end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Gate drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Reference voltage and bandgap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Internal linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power up sequencing and operative modes . . . . . . . . . . . . . . . . . . . . . . . 28
PM6680A

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