ISL6353 Datasheet, PDF (9/30 Pages) Intersil Corporation – Multiphase PWM Regulator for VR12 DDR Memory Systems

ISL6353
Electrical Specifications Operating Conditions: V_DD = 5V, T_A = 0°C to +70°C for ISL6353CRTZ and T_A = -40°C to +85°C for ISL6353IRTZ,
f_SW = 300kHz, unless otherwise noted. Boldface limits apply over the operating temperature range. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
CHANNEL FREQUENCY
Nominal Channel Frequency
Adjustment Range
f_SW(nom)
R_FSET = 18kΩ, 3-channel operation, V_COMP = 1V
280 300 320 kHz
200
500 kHz
AMPLIFIERS
Current-Sense Amplifier Input Offset
Error Amp DC Gain
Error Amp Gain-Bandwidth Product
ISEN1/2/3
A_v0
GBW
I_FB = 0A
C_L= 20pF
-0.1
+0.1 mV
119
dB
17
MHz
Input Bias Current
20
nA
POWER GOOD AND PROTECTION MONITORS
PGOOD Low Voltage
PGOOD Leakage Current
ALERT# Pull-Down Resistance
V_OL
I_PGOOD = 4mA
I_OH
PGOOD = 3.3V
0.26 0.4 V
-1
1
µA
7
13
Ω
ALERT# Leakage Current
1
µA
VR_HOT# Pull-Down Resistance
7
13
Ω
VR_HOT# Leakage Current
1
µA
GATE DRIVER
UGATE Pull-Up Resistance
UGATE Source Current
UGATE Sink Resistance
UGATE Sink Current
LGATE Pull-Up Resistance
LGATE Source Current
LGATE Sink Resistance
LGATE Sink Current
UGATE to LGATE Deadtime
LGATE to UGATE Deadtime
PROTECTION FUNCTIONS
R_UGPU
I_UGSRC
R_UGPD
I_UGSNK
R_LGPU
I_LGSRC
R_LGPD
I_LGSNK
t_UGFLGR
t_LGFUGR
200mA Source Current
UGATE - PHASE = 2.5V
250mA Sink Current
UGATE - PHASE = 2.5V
250mA Source Current
LGATE - GND = 2.5V
250mA Sink Current
LGATE - GND = 2.5V
UGATE falling to LGATE rising, no load
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
23
ns
28
ns
Pre-Charge Overvoltage Threshold
Overvoltage Threshold
OVP Pin Sink Current
Overcurrent Threshold
OV_P
OV_H
I_OVP
CRTZ
VSEN rising above setpoint for >1ms
VSEN rising above setpoint for >1ms
V_OVP = VDD - 1V
3/2/1-Phase Config, PS0
2.29
145
20
56.5
2.35
175
60
V
200 mV
mA
64.5 µA
IRTZ
3/2/1-Phase Config, PS0
54.5 60 64.5 µA
CRTZ
3-Phase Config, PS1 - Drop to 2-Phase
38.3 40 43.2 µA
IRTZ
3-Phase Config, PS1 - Drop to 2-Phase
37
40 43.2 µA
CRTZ
3-Phase Config, PS1/2 - Drop to 1-Phase
19
20 22.25 µA
IRTZ
3-Phase Config, PS1/2 - Drop to 1-Phase
18.5 20 22.25 µA
CRTZ
2-Phase Config, PS1/2 - Drop to 1-Phase
28
30
33 µA
IRTZ
2-Phase Config, PS1/2 - Drop to 1-Phase
27
30
33 µA
9
September 15, 2011
FN6897.0