參數(shù)資料
型號(hào)： ISL6426IV
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
中文描述： SWITCHING CONTROLLER, 770 kHz SWITCHING FREQ-MAX, PDSO16
封裝： PLASTIC, MO-153-AB, TSSOP-16
文件頁(yè)數(shù)： 14/18頁(yè)
文件大?。?/td> 541K
代理商： ISL6426IV
5
Absolute Maximum Ratings
Thermal Information
Supply Voltage, VCC (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V
Absolute Boot Voltage, VBOOT . . . . . . . . . . . . . . . . . . . . . . . +15.0V
Upper Driver Supply Voltage, VBOOT - VPHASE . . . . . . . . . . . +6.0V
Input, Output or I/O Voltage . . . . . . . . . . . GND -0.3V to VCC +0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Operating Conditions
Temperature Range
ISL6406, ISL6426C . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
ISL6406, ISL6426I . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3V ±10%
Thermal Resistance (Typical)
θJA (°C/W) θJC (°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.
θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
3.
θJA 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
θJC, 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. VCC = +3.3V. Typical values are at TA = 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VCC SUPPLY
Shutdown Supply Current
SYNC/EN = GND
-
20
50
A
Operating Supply Current (Note 5)
RT = 64.9k
7
9.8
11.5
mA
REFERENCE VOLTAGE
Nominal Reference Voltage
-0.8
-
V
Reference Voltage Tolerance
-1.5
-
1.5
%
TA = 0°C to 70°C
-1.8
-
1.8
%
TA = -40°C to +85°C
-2.1
-
2.1
%
ERROR AMPLIFIER
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/
s
CHARGE PUMP
Nominal Charge Pump Output
VCC = 3.3V, No Load
4.8
5.1
5.5
V
Charge Pump Output Regulation
-5.0
-
5.0
%
POWER-ON RESET
Rising CPVOUT POR Threshold
TA = 0°C to 70°C
4.20
4.35
4.5
V
TA = -40°C to +85°C
4.1
4.35
4.6
V
CPVOUT POR Threshold Hysteresis
0.3
0.5
0.9
V
OSCILLATOR
Gate Output Frequency Range
RT = 200k
80
100
120
kHz
RT = 64.9k
250
300
340
kHz
RT = 26.1k
650
715
770
kHz
Sawtooth Amplitude
Peak-to-Peak
VOSC
1.1
1.4
1.7
V
ISL6406, ISL6426
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