ISL6406_07 Datasheet, PDF (5/18 Pages) Intersil Corporation – Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

ISL6406
Absolute Maximum Ratings
Supply Voltage, VCC (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V
Absolute Boot Voltage, V_BOOT . . . . . . . . . . . . . . . . . . . . . . . +15.0V
Upper Driver Supply Voltage, V_BOOT - V_PHASE . . . . . . . . . . . +6.0V
Input, Output or I/O Voltage . . . . . . . . . . . GND -0.3V to VCC +0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Operating Conditions
Temperature Range
ISL6406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
ISL6406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3V ±10%
Thermal Information
Thermal Resistance (Typical)
θ_JA (°C/W) θ_JC (°C/W)
SOIC (Note 2) . . . . . . . . . . . . . . . . . . .
70
N/A
TSSOP (Note 2) . . . . . . . . . . . . . . . . . .
90
N/A
QFN (Notes 3, 4) . . . . . . . . . . . . . . . . .
35
4.5
Maximum Junction Temperature (Plastic Package) .-55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C
(SOIC - Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. Please refer to the Typical Application Schematics (page 3) for 3.3V/5V input configuration.
2. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
3. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
4. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. V_CC = +3.3V. Typical values are at T_A = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
V_CC SUPPLY
Shutdown Supply Current
SYNC/EN = GND
-
20
50
μA
Operating Supply Current (Note 5)
RT = 64.9kΩ
7
9.8
11.5
mA
REFERENCE VOLTAGE
Nominal Reference Voltage
-
0.8
-
V
Reference Voltage Tolerance
-1.5
-
1.5
%
ERROR AMPLIFIER
T_A = 0°C to +70°C
T_A = -40°C to +85°C
-1.8
-
1.8
%
-2.1
-
2.1
%
Open Loop Voltage Gain (Note 6)
-
82
-
dB
Gain-Bandwidth Product (Note 6)
14
-
-
MHz
Slew Rate (Note 5)
COMP = 10pF
4.65
6.0
9.2
V/μs
CHARGE PUMP
Nominal Charge Pump Output
Charge Pump Output Regulation
V_CC = 3.3V, No Load
4.8
5.1
5.5
V
-5.0
-
5.0
%
POWER-ON RESET
Rising CPVOUT POR Threshold
CPVOUT POR Threshold Hysteresis
T_A = 0°C to +70°C
T_A = -40°C to +85°C
4.20
4.35
4.5
V
4.1
4.35
4.6
V
0.3
0.5
0.9
V
OSCILLATOR
Gate Output Frequency Range
RT = 200kΩ
80
100
120
kHz
RT = 64.9kΩ
250
300
340
kHz
RT = 26.1kΩ
650
715
770
kHz
Sawtooth Amplitude
Peak-to-Peak ΔV_OSC
1.1
1.4
1.7
V
5
FN9073.7
January 16, 2007