ISL62875 Datasheet, PDF (9/22 Pages) Intersil Corporation – PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator

ISL62875
Electrical Specifications
These specifications apply for T_A = -10°C to +100°C, unless otherwise stated.
All typical specifications T_A = +25°C, VCC = 5V. Boldface limits apply over the operating
temperature range, -10°C to +100°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNIT
Voltage Step Current
EXTERNAL REFERENCE
I_VS SREF = Setpoint-Stepping Mode
±60 ±100 ±140 µA
EXTREF Operating Voltage Range
EXTREF Accuracy
POWER GOOD
V_EXT SET0 = VCC
V_{EXT_OFS} SET0 = VCC, VID0 = 0V to 1.5V
0
-0.5
-
1.5
V
-
+0.5
%
PGOOD Pull-down Impedance
PGOOD Leakage Current
PGOOD Maximum Sink Current
(Note 6)
R_{PG_SS} PGOOD = 5mA Sink
R_{PG_UV} PGOOD = 5mA Sink
R_{PG_OV} PGOOD = 5mA Sink
R_{PG_OC} PGOOD = 5mA Sink
I_PG PGOOD = 5V
I_{PG_max}
75
95
150
Ω
75
95
150
Ω
50
65
90
Ω
25
35
50
Ω
-
0.1
1.0
µA
-
5.0
-
mA
GATE DRIVER
UGATE Pull-Up Resistance (Note 6)
UGATE Source Current (Note 6)
UGATE Sink Resistance (Note 6)
UGATE Sink Current (Note 6)
LGATE Pull-Up Resistance (Note 6)
LGATE Source Current (Note 6)
LGATE Sink Resistance (Note 6)
LGATE Sink Current (Note 6)
UGATE to LGATE Deadtime
LGATE to UGATE Deadtime
PHASE
R_UGPU 200mA Source Current
I_UGSRC UGATE - PHASE = 2.5V
R_UGPD 250mA Sink Current
I_UGSNK UGATE - PHASE = 2.5V
R_LGPU 250mA Source Current
I_LGSRC LGATE - GND = 2.5V
R_LGPD 250mA Sink Current
I_LGSNK LGATE - PGND = 2.5V
t_UGFLGR UGATE falling to LGATE rising, no load
t_LGFUGR LGATE falling to UGATE rising, no load
-
1.0
1.5
Ω
-
2.0
-
A
-
1.0
1.5
Ω
-
2.0
-
A
-
1.0
1.5
Ω
-
2.0
-
A
-
0.5
0.9
Ω
-
4.0
-
A
-
21
-
ns
-
21
-
ns
PHASE Input Impedance
BOOTSTRAP DIODE
R_PHASE
-
33
-
kΩ
Forward Voltage
Reverse Leakage
CONTROL INPUTS
V_F PVCC = 5V, I_F = 2mA
I_R
V_R = 25V
-
0.58
-
V
-
0.2
-
µA
EN High Threshold Voltage
EN Low Threshold Voltage
EN Input Bias Current
EN Leakage Current
VID<0,1> High Threshold Voltage
VID<0,1> Low Threshold Voltage
VID<0,1> Input Bias Current
VID<0,1> Leakage Current
V_ENTHR
V_ENTHF
I_EN EN = 5V
I_ENoff EN = GND
V_VIDTHR
V_VIDTHF
I_VID EN = 5V, V_VID = 1V
I_VIDoff
2.0
-
-
V
-
-
1.0
V
1.5
2.0
2.5
µA
-
0.1
1.0
µA
0.6
-
-
V
-
-
0.5
V
-
0.5
-
µA
-
0
-
µA
9
September 18, 2009
FN6905.1