ISL62881C Datasheet, PDF (7/37 Pages) Intersil Corporation – Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

ISL62881C, ISL62881D
Electrical Specifications
Operating Conditions: V_DD = 5V, T_A = -40°C to +100°C, f_SW = 300kHz, unless otherwise
noted. Boldface limits apply over the operating temperature range, -40°C to
+100°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNITS
CHANNEL FREQUENCY
Nominal Channel Frequency
Adjustment Range
f_SW(nom)
RF_SET = 7kΩ, V_COMP = 1V
295 310 325
kHz
200
500
kHz
AMPLIFIERS
Current-Sense Amplifier
Input Offset
I_FB = 0A
-0.15
+0.15 mV
Error Amp DC Gain (Note 6)
Error Amp Gain-Bandwidth
Product (Note 6)
A_v0
GBW
C_L = 20pF
90
dB
18
MHz
POWER GOOD AND PROTECTION MONITORS
PGOOD Low Voltage
PGOOD Leakage Current
PGOOD Delay
V_OL
I_OH
tpgd
I_PGOOD = 4mA
PGOOD = 3.3V
CLK_ENABLE# LOW to PGOOD HIGH
0.26 0.4
V
-1
1
µA
6.3
7.6
8.9
ms
UGATE DRIVER
UGATE Pull-Up Resistance
(Note 6)
R_UGPU
200mA Source Current
1.0
1.5
Ω
UGATE Source Current
(Note 6)
I_UGSRC
BOOT - UGATE = 2.5V
2.0
A
UGATE Sink Resistance
(Note 6)
R_UGPD
250mA Sink Current
1.0
1.5
Ω
UGATE Sink Current (Note 6)
LGATE DRIVER (ISL62881C)
I_UGSNK
UGATE - PHASE = 2.5V
2.0
A
LGATE Pull-Up Resistance
(Note 6)
R_LGPU
250mA Source Current
1.0
1.5
Ω
LGATE Source Current
(Note 6)
I_LGSRC
VCCP - LGATE = 2.5V
2.0
A
LGATE Sink Resistance
(Note 6)
R_LGPD
250mA Sink Current
0.5
0.9
Ω
LGATE Sink Current (Note 6)
I_LGSNK
UGATE to LGATE Deadtime
t_UGFLGR
LGATE to UGATE Deadtime
t_LGFUGR
LGATE DRIVERS (ISL62881D)
LGATE - VSSP = 2.5V
UGATE falling to LGATE rising, no load
LGATE falling to UGATE rising, no load
4.0
A
23
ns
28
ns
LGATEa and b Pull-Up
Resistance (Note 6)
R_LGPU
250mA Source Current
2.0
3
Ω
LGATEa and b Source
Current (Note 6)
I_LGSRC
VCCP - LGATEa and b = 2.5V
1.0
A
LGATEa and b Sink
Resistance (Note 6)
R_LGPD
250mA Sink Current
1
1.8
Ω
LGATEa and b Sink Current
(Note 6)
I_LGSNK
LGATEa and b - VSSP = 2.5V
2.0
A
UGATE to LGATEa and b
Deadtime
t_UGFLGR
UGATE falling to LGATEa and b rising, no
load
23
ns
LGATEa and b to UGATE
Deadtime
t_LGFUGR
LGATEa and b falling to UGATE rising, no
load
28
ns
7
FN7596.0
March 8, 2010