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L6731D Datasheet(PDF) 9 Page - STMicroelectronics

Part # L6731D
Description  Adjustable step-down controller with synchronous rectification dedicated to DDR memory
PDF  23 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6731D Datasheet(HTML) 9 Page - STMicroelectronics

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L6731D
Electrical characteristics
9/23
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
Gate drivers
RHGATE_ON High side source resistance
VBOOT - VPHASE = 5 V
1.7
Ω
RHGATE_OFF High side sink resistance
VBOOT - VPHASE = 5 V
1.12
Ω
RLGATE_ON Low side source resistance
VCCDR = 5 V
1.15
Ω
RLGATE_OFF Low side sink resistance
VCCDR = 5 V
0.6
Ω
Protections
IOCH
OCH current source
VOCH = 1.7 V
90
100
110
µΑ
IOCL
OCL current source
90
100
110
µΑ
OVP
Over voltage trip
(VFB / VEAREF)
VFB rising
VEAREF = 0.6 V
120
%
VFB falling
VEAREF = 0.6 V
117
%
Under voltage threshold
(V
B
FB B/ VBEAREFB)
V
B
FBB falling
80
%
Power good
Upper threshold
(V
B
FB B/ VBEAREFB)
V
B
FBB rising
108
110
112
%
Lower threshold
(V
B
FB B/ VBEAREFB)
V
B
FBB falling
88
90
92
%
VBPGOODB
PGOOD voltage low
I
B
PGOODB = -5 mA
0.5
V
Table 5.
Electrical characteristics (continued)
Table 6.
Thermal characteristics (VCC = 12 V)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
Output voltage
VFB
Output voltage
TJ = 0 °C~ 125 °C
0.596
0.6
0.605
V
TJ = -40 °C~ 125 °C
0.593
0.6
0.605



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