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ISL8033 の電気的特性と機能

ISL8033のメーカーはIntersilです、この部品の機能は「Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL8033
部品説明 Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL8033 Datasheet, ISL8033 PDF,ピン配置, 機能
Dual 3A Low Quiescent Current High Efficiency
Synchronous Buck Regulator
ISL8033, ISL8033A
ISL8033 is a dual integrated power controller rated for 3A per
channel with a 1MHz step-down regulator that is ideal for any low
power low-voltage applications. The ISL8033A offers 2.5MHz
operation for smaller more compacted design. The channels are
180° out-of-phase for input RMS current and EMI reduction. It is
optimized for generating low output voltages down to 0.8V each.
The supply voltage range is from 2.85V to 6V, allowing for the use
of a single Li+ cell, three NiMH cells or a regulated 5V input. It
has a guaranteed minimum output current of 3A each when ISET
is connected to VDD. The output current of each output is
selectable by setting ISET pin.
The ISL8033, ISL8033A includes a pair of low ON-resistance
P-Channel and N-Channel internal MOSFETs to maximize
efficiency and minimize external component count. 100% duty-
cycle operation allows less than 250mV dropout voltage at 3A.
The ISL8033, ISL8033A offers an independent 1ms Power-Good
(PG) timer at power-up. When shutdown, ISL8033, ISL8033A
discharges the output capacitor. Other features include internal
digital soft-start, enable for power sequence, controllable soft-
stop output discharge during disabled, start-up with pre-biased
output, 100% maximum duty cycle for lowest dropout, 100%
duty cycle operation for smooth transition, less than 8µA logic
controlled shutdown current, independent enable, overcurrent
protection, and thermal shutdown.
The ISL8033, ISL8033A is offered in a 24 Ld 4mmx4mm QFN
package with 1mm maximum height. The complete converter
occupies less than 5.46cm2 area.
Features
• Dual 3A High Efficiency Synchronous Buck Regulator with up
to 95% Efficiency
• 2% Output Accuracy Over-Temperature/Load/Line
• Internal Digital Soft-Start - 1.5ms
• External Synchronization up to 6MHz (ISL8033)
• Internal Current Mode Compensation
• Peak Current Limiting and Hiccup Mode Short Circuit
Protection
• Adjustable Peak Overload Current
• Negative Current Protection
• Pb-Free (RoHS Compliant)
Applications
• DC/DC POL Modules
• µC/µP, FPGA and DSP Power
• Plug-in DC/DC Modules for Routers and Switchers
• Test and Measurement Systems
• Li-ion Battery Power Devices
• Bar Code Readers
Related Literature
• See AN1606, ISL8033EVAL1Z Application Note
• See AN1611, ISL8033EVAL2Z Application Note
100
90
80
70 3.3VOUT
60
50
400.0
VIN = 5V
0.5 1.0 1.5 2.0
IOUT (A)
FIGURE 1. EFFICIENCY vs LOAD
2.5
3.0
March 24, 2011
FN6854.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2010, 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
Free Datasheet http://www.datasheet4u.com/

1 Page





ISL8033 pdf, ピン配列
Block Diagram
ISL8033, ISL8033A
SOFT-
START
SHUTDOWN
EN1
BANDGAP 0.8V EAM P
27pF
390k
0 .3 p F
+
COMP
FB1
1.6k
PG1
SGND
VIN
1M
3pF
SLOPE
COMP
+
0.5V SCP
+
0.864V +
+
0.736V
O S C IL L A T O R
1ms
DELAY
THERMAL SHUTDOWN
SHUTDOWN
SSOTFAT -
S TRATR T
SHUTDOWN
27pF
390k
EN2
BANDGAP 0.8V EAM P
0.3pF
+
COMP
FB2
1.6k
3pF
SLOPE
COMP
+
0.5V SCP
+
0.864V +
PG2
SGND
VIN +
0.736V
1M
1ms
DELAY
SHUTDOWN
PWM
LO G IC
CONTROLLER
P R O T E C T IO N
D R IV E R
+
CSA1
OCP
THRESHOLD
L O G IC
SHUTDOWN
PWM
L O G IC
CONTROLLER
P R O T E C T IO N
D R IV E R
+
CSA2
VIN
LX1
PGND
SYNC
ISET
VIN
LX2
PGND
3 FN6854.2
March 24, 2011
Free Datasheet http://www.datasheet4u.com/


3Pages


ISL8033 電子部品, 半導体
ISL8033, ISL8033A
Absolute Maximum Ratings (Reference to SGND)
VIN1,VIN2, VDD. . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V (DC) or 7V (20ms)
LX1, LX2 . . . . . . . . . . . . . . . . . . .-1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)
EN1, EN2, PG1, PG2, SYNC, ISET . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
FB1, FB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
NC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
ESD Ratings
Human Body Model (Tested per JESD22-A114) . . . . . . . . . . . . . . . . . 4kV
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . . 2kV
Machine Model (Tested per JESD22-A115). . . . . . . . . . . . . . . . . . . .0.3kV
Latch Up (Tested per JESD-78A; Class 2, Level A) . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
4x4 QFN Package (Notes 4, 5) . . . . . . . .
36
2
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.85V to 6V
Load Current Range per Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 3A
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. 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.
5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Unless otherwise noted, the typical specifications are measured at the following conditions:
TA = -40°C to +85°C, VIN = 3.6V, EN1 = EN2 = VDD, L = 1.5µH, C1 = C2 = C4 = 2x22µF, IOUT1 = IOUT2 = 0A to 3A. Typical values are at TA = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +85°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN MAX
(Note 7) TYP (Note 7)
UNITS
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
VUVLO Rising
Hysteresis
2.5 2.85
50 100
V
mV
Quiescent Supply Current
Shutdown Supply Current
OUTPUT REGULATION
IVDD
SYNC = VDD, EN1 = EN2 = VDD,
FS = 1MHz, no load at the output
SYNC = VDD, EN1 = EN2 = VDD,
FS = 2.5MHz, no load at the output
ISD VDD = 6V, EN1 = EN2 = SGND
15 40
30 70
8 20
mA
mA
µA
FB1, FB2 Regulation Voltage
FB1, FB2 Bias Current
Load Regulation
VFB
IFB VFB = 0.75V
SYNC = VDD, output load from 0A to 3A
0.790 0.8 0.810
0.1
2
V
µA
mV/A
Line Regulation
VIN = VO + 0.5V to 6V (minimal 2.85V)
0.1 %/V
Soft-Start Ramp Time Cycle
1.5 ms
COMPENSATION
Error Amplifier Trans-Conductance
20 µA/V
Trans-Resistance
RT
0.18 0.2 0.22
Ω
OVERCURRENT PROTECTION
Dynamic Current Limit ON-time
Dynamic Current Limit OFF-time
tOCON
tOCOFF
17 Clock pulses
8 SS cycle
6 FN6854.2
March 24, 2011
Free Datasheet http://www.datasheet4u.com/

6 Page



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共有リンク

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部品番号部品説明メーカ
ISL8033

Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator

Intersil
Intersil
ISL8033A

Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator

Intersil
Intersil
ISL8036

Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator

Intersil
Intersil
ISL8036A

Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator

Intersil
Intersil


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