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ISL8013のメーカーはIntersil Corporationです、この部品の機能は「3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator」です。 |
部品番号 | ISL8013 |
| |
部品説明 | 3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | ||
メーカ | Intersil Corporation | ||
ロゴ | |||
このページの下部にプレビューとISL8013ダウンロード(pdfファイル)リンクがあります。 Total 17 pages
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ISL8013
The ISL8013 is a high efficiency, monolithic, synchronous
step-down DC/DC converter that can deliver up to 3A
continuous output current from a 2.7V to 5.5V input
supply. It uses a current control architecture to deliver
very low duty cycle operation at high frequency with fast
transient response and excellent loop stability.
The ISL8013 integrates a pair of low ON-resistance
P-Channel and N-Channel internal MOSFETs to maximize
efficiency and minimize external component count. The
100% duty-cycle operation allows less than 300mV
dropout voltage at 3A output current. High 1MHz
pulse-width modulation (PWM) switching frequency
allows the use of small external components and SYNC
input enables multiple ICs to synchronize out of phase to
reduce ripple and eliminate beat frequencies.
The ISL8013 can be configured for discontinuous or
forced continuous operation at light load. Forced
continuous operation reduces noise and RF interference
while discontinuous mode provides high efficiency by
reducing switching losses at light loads.
Fault protection is provided by internal hiccup mode
current limiting during short circuit and overcurrent
conditions, an output over voltage comparator and
over-temperature monitor circuit. A power good output
voltage monitor indicates when the output is in
regulation.
The ISL8013 is offered in a space saving 4x4 QFN lead
free package with exposed pad lead frames for low
thermal resistance.
The ISL8013 includes a pair of low ON-resistance
P-Channel and N-Channel internal MOSFETs to maximize
efficiency and minimize external component count. The
100% duty-cycle operation allows less than 300mV
dropout voltage at 3A.
The ISL8013 offers a 1ms Power Good (PG) timer at
power-up. When shutdown, ISL8013 discharges the
output capacitor. Other features include internal
soft-start, internal compensation, overcurrent protection,
and thermal shutdown.
The ISL8013 is offered in a 4mmx4mm 16 Ld QFN
package with 1mm maximum height. The complete
converter occupies less than 0.4in2 area.
Features
• High Efficiency Synchronous Buck Regulator with up
to 97% Efficiency
• Power-Good (PG) Output with a 1ms Delay
• 2.7V to 5.5V Supply Voltage
• 3% Output Accuracy Over-Temperature/Load/Line
• 3A Output Current
• Start-Up with Pre-Biased Output
• Internal Soft-Start - 1ms
• Soft-Stop Output Discharge During Disabled
• 35µA Quiescent Supply Current in PFM Mode
• Selectable Forced PWM Mode and PFM Mode
• External Synchronization up to 4MHz
• Less than 1µA Logic Controlled Shutdown Current
• 100% Maximum Duty Cycle
• Internal Current Mode Compensation
• Peak Current Limiting and Hiccup Mode Short Circuit
Protection
• Over-Temperature Protection
• Small 16 Ld 4mmx4mm QFN
• Pb-Free (RoHS Compliant)
Applications
• DC/DC POL Modules
• µC/µP, FPGA and DSP Power
• Plug-in DC/DC Modules for Routers and Switchers
• Portable Instruments
• Test and Measurement Systems
• Li-ion Battery Powered Devices
• Small Form Factor (SFP) Modules
• Bar Code Readers
November 23, 2009
FN6309.3
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 Page Typical Application
ISL8013
INPUT 2.7V TO 5.5V
C1
2 x 22µF
R1
100k
VIN
VDD
LX
PGND
L
1.5µH
OUTPUT
1.8V
C2
2 x 22µF
R2
124k
C3
47pF
ISL8013
PG
VFB
R3
EN 100k
SYNCH
SGND
FIGURE 1. TYPICAL APPLICATION DIAGRAM
3 FN6309.3
November 23, 2009
3Pages ISL8013
Electrical Specifications
Unless otherwise noted, all parameter limits are established over the recommended
operating conditions and the typical specification are measured at the following conditions:
TA = -40°C to +85°C, VIN = 3.6V, EN = VDD, unless otherwise noted. Typical values are at
TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to
+85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7)
UNITS
LX
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
LX Maximum Duty Cycle
VIN = 5V, IO = 200mA
VIN = 2.7V, IO = 200mA
VIN = 5V, IO = 200mA
VIN = 2.7V, IO = 200mA
- 50 75
- 70 100
- 50 75
- 70 100
- 100 -
mΩ
mΩ
mΩ
mΩ
%
PWM Switching Frequency
LX Minimum On-Time
fS
SYNCH = High
0.80
-
1.00
-
1.20
140
MHz
ns
PG
Output Low Voltage
Sinking 1mA
- - 0.3
V
Delay Time (Rising Edge)
0.65 1 1.35
ms
PG Pin Leakage Current
PG = VIN = 3.6V
- 0.01 0.1
µA
PGOOD Rising Threshold
Percentage of regulation voltage
89 92 95
%
PGOOD Falling Threshold
Percentage of regulation voltage
85 88 91.5
%
PGOOD Delay Time (Falling Edge)
- 15 -
µs
EN, SYNCH
Logic Input Low
- - 0.4
V
Logic Input High
1.4 -
-
V
Synch Logic Input Leakage Current
Enable Logic Input Leakage Current
Thermal Shutdown
ISYNCH
IEN
Pulled up to 5.5V
- 0.1 1
- 0.1 1
- 140 -
μA
μA
°C
Thermal Shutdown Hysteresis
- 25 -
°C
NOTES:
6. Limits established by characterization and are not production tested.
7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established
by characterization and are not production tested.
6 FN6309.3
November 23, 2009
6 Page | |||
ページ | 合計 : 17 ページ | ||
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PDF ダウンロード | [ ISL8013 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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