ISL6549 INTERSIL [Intersil Corporation], ISL6549 Datasheet - Page 5

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ISL6549

Manufacturer Part Number
ISL6549
Description
Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet

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Electrical Specifications
NOTES:
Sawtooth Amplitude (Note 6)
Soft-Start Interval
REFERENCE VOLTAGE
Reference Voltage
PWM CONTROLLER ERROR AMPLIFIER
DC Gain (Note 6)
Gain-Bandwidth Product (Note 6)
Slew Rate (Note 6)
FB Input Current
COMP High Output Voltage
COMP Low Output Voltage
COMP High Output, Source Current
Undervoltage Level (V
PWM CONTROLLER GATE DRIVERS
UGATE Maximum Voltage
LGATE Maximum Voltage
UGATE and LGATE Minimum Voltage
UGATE Source Output Impedance
UGATE Sink Output Impedance
LGATE Source Output Impedance
LGATE Sink Output Impedance
LINEAR REGULATOR (LDO_DR)
DC Gain (Note 6)
Gain-Bandwidth Product (Note 6)
Slew Rate (Note 6)
LDO_FB Input Current
LDO_DR High Output Voltage
LDO_DR Low Output Voltage
LDO_DR High Output Source Current
LDO_DR Low Output Sink Current
Undervoltage Level (V
4. Current in VCC5 is actually higher disabled, due to extra current required to pull down against the FS_DIS pin. VCC12 current is lower disabled.
5. Guaranteed by design, not production tested. Exceeding the maximum current from PVCC5 may result in degraded performance and unsafe
6. Guaranteed by design, not production tested.
operation.
PARAMETER
FB
LDO_FB
/V
REF
/V
)
REF
5
Recommended Operating Conditions, unless otherwise noted. VCC12 = 12V
Temperature = 0 to +70°C (typical = +25°C) for Commercial; Temperature = -40 to + 85°C (typical = +25°C) for
Industrial. Refer to Block Diagram, Simplified Power System Diagram, and Typical Application Schematic.
(Continued)
)
V
V
V
V
I
I
SYMBOL
V
I
V
OUT
R
R
R
R
OUT
OUT
OUT
V
OUT
DV
OUT
OUT
GBWP
HUGATE
GBWP
HLGATE
V
DS(ON)
DS(ON)
DS(ON)
DS(ON)
LGATE
Gain
V
V
T
⎜I
⎜I
SR
SR
REF
SS
UV
UV
OSC
I
I
High
High
Low
High
High
Low
Low
F
ISL6549C; For Error Amp 1 and 2
ISL6549I; For Error Amp 1 and 2
R
R
R
V
VCC12 = 12V; PHASE = 12V
VCC12 = 12V; based on PVCC5 voltage
VCC12 = 12V; PHASE = 0V
VCC12 = 12V; I
VCC12 = 12V; I
VCC12 = 12V; I
VCC12 = 12V; I
R
R
R
V
VCC12 = 12V
V
Percent of Nominal
OSC
FB
LDO_FB
OUT
L
L
L
L
L
L
= 10K, C
= 10K, C
= 10K, C
= 10K, C
= 10K, C
= 10K, C
ISL6549
= 0.8V
= 620kHz
= 2.0V
= 0.8V
TEST CONDITIONS
L
L
L
L
L
L
= 10pF
= 10pF
= 10pF
= 10pF
= 10pF
= 10pF
GATE
GATE
GATE
GATE
= 100mA
= 100mA
= 100mA
= 100mA
0.792
0.788
MIN
70
17
70
TYP
17.5
5.25
11.0
-2.8
100
1.5
6.8
0.8
0.8
0.1
4.8
0.6
0.8
0.7
0.8
0.4
0.1
0.0
2.0
0.5
96
20
75
75
8
0
2
6
0.808
0.812
MAX
11.5
September 22, 2006
1.0
0.5
1.0
0.5
80
18
80
6
UNITS
FN9168.2
MHz
V/µs
MHz
V/µs
mA
mA
mA
ms
dB
µA
dB
µA
%
%
V
V
V
V
V
V
V
V
V

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