PM6681A STMicroelectronics, PM6681A Datasheet - Page 10
PM6681A
Manufacturer Part Number
PM6681A
Description
Dual synchronous step down controller with adjustable LDO
Manufacturer
STMicroelectronics
Datasheet
1.PM6681A.pdf
(47 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PM6681ATR
Manufacturer:
STM
Quantity:
6 000
Electrical characteristics
5
Table 6.
10/47
Supply section
Shutdown section
soft-start section
Current limit and zero crossing comparator
Symbol
I
R
V
V
CSENSE
DS(on)
V5SW
SHDN
Pin
Ish
Isb
Electrical characteristics
Electrical characteristics
(V
Turn-on voltage threshold
Turn-off voltage threshold
Hysteresis
LDO5 internal bootstrap
switch resistance
OUTx, OUTx
discharge-mode
On-resistance
OUTx, OUTx
discharge-mode
Synchronous rectifier
turn-on level
Operating power
consumption
Operating current sunk by
V
Operating current sunk by
V
Device on threshold
Device off threshold
soft-start ramp time
Input bias current limit
Comparator offset
Zero crossing comparator
offset
Fixed negative current limit
threshold
IN
IN
IN
= 24 V; T
Parameter
J
= 25 °C, unless otherwise specified)
(1)
V5SW > 4.9 V
FBx > VREF, Vref in regulation,
V5WS to 5 V
SHDN connected to GND
ENx to GND, V5SW to GND
V
V
V
CSENSE
PGND
PGND
- V
- V
Test condition
- V
PHASE
PHASE
PGND
Min
4.6
0.2
1.2
0.8
20
90
-6
-1
2
-120
4.75
0.35
0.85
Typ
250
100
4.8
1.8
1.5
50
18
20
Max
380
110
4.9
0.6
1.7
0.9
3.5
25
30
11
3
4
6
PM6681A
Unit
mW
mV
mV
mV
mV
ms
µA
µA
µA
Ω
Ω
V
V
V
V
V