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ISL9120IR の電気的特性と機能

ISL9120IRのメーカーはIntersilです、この部品の機能は「Compact High Efficiency Low Power Buck-Boost Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL9120IR
部品説明 Compact High Efficiency Low Power Buck-Boost Regulator
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL9120IR Datasheet, ISL9120IR PDF,ピン配置, 機能
DATASHEET
Compact High Efficiency Low Power Buck-Boost
Regulator
ISL9120IR
The ISL9120IR is a highly integrated buck-boost switching
regulator that accepts input voltages either above or below the
regulated output voltage. This regulator automatically transitions
between buck and boost modes without significant output
disturbance. The ISL9120IR also has automatic bypass
functionality for when the input voltage is generally within 1% to
2% of the output voltage, there will be a direct bypass connection
between the VIN and VOUT pins. In addition to the automatic
bypass functionality, the ISL9120IR also has a forced bypass
functionality with the use of the BYPS pin.
This device is capable of delivering up to 800mA of output
current (VIN = 2.5V, VOUT = 3.3V) and provides excellent
efficiency due to its adaptive current limit pulse frequency
modulation (PFM) control architecture.
The ISL9120IR is designed for stand-alone applications and
supports a 3.3V fixed output voltage or variable output voltages
with an external resistor divider. The forced bypass power saving
mode can be chosen if voltage regulation is not required. The
device consumes less than 3.5µA of current over the operating
temperature range in the forced bypass mode.
The ISL9120IR requires only a single inductor and very few
external components. Power supply solution size is minimized by
a 3mmx3mm 12 Ld TQFN package.
Features
• Accepts input voltages above or below regulated output
voltage
• Automatic bypass mode functionality
• Automatic and seamless transitions between buck and boost
modes
• Input voltage range: 1.8V to 5.5V
• Selectable forced bypass power saving mode
• Adaptive multilevel current limit scheme to optimize efficiency
at low and high currents
• Output current: up to 800mA (VIN = 2.5V, VOUT = 3.3V)
• High efficiency: up to 98%
• 41µA quiescent current maximizes light-load efficiency
• Fully protected for over-temperature and undervoltage
• Small 3mmx3mm 12 Ld TQFN package
Applications
• Smartphones and tablets
• Portable consumer and wearable devices
VIN =
1.8V TO 5.5V
C1
10µF
ENABLE
DISABLE
BYPASS
BUCK-BOOST
ISL9120IRNZ
VIN LX1
EN
BYPS
LX2
VOUT
FB
L1
1µH
VOUT = 3.3V
C2
22µF or 47µF
FIGURE 1. TYPICAL FIXED OUTPUT APPLICATION
100
VIN = 3.6V
95
90
VIN = 4V
85
VIN = 3.4V
80
VIN = 2.5V
VIN = 3V
75
70
1 10 100
OUTPUT CURRENT (mA)
FIGURE 2. EFFICIENCY: VOUT = 3.3V, TA = +25°C
1000
February 2, 2016
FN8743.1
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 LLC 2015, 2016. 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.

1 Page





ISL9120IR pdf, ピン配列
ISL9120IR
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
VOUT
(V)
TEMP RANGE
(°C)
PACKAGE
(RoHS Compliant)
PKG.
DWG. #
ISL9120IRTAZ
120A
ADJ. -40 to +85 12 Ld 3x3 TQFN
L12.3x3A
ISL9120IRTNZ
120N
3.3 -40 to +85 12 Ld 3x3 TQFN
L12.3x3A
ISL9120IRN-EVZ
Evaluation Board for ISL9120IRNZ
ISL9120IRA-EVZ
Evaluation Board for ISL9120IRAZ
NOTES:
1. Add “-T*” suffix for 3k unit tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see product information page for ISL9120. For more information on MSL, please see tech brief TB363.
FIGURE 4. KEY DIFFERENCES BETWEEN FAMILY OF PARTS
ISL9120
ISL9120IR
Buck-boost
regulation
Yes
Yes
Bypass
Yes
Yes
Package
1.41x1.41mm 9-Bump 3x3mm 12Ld TQFN
WLCSP
Submit Document Feedback
3
FN8743.1
February 2, 2016


3Pages


ISL9120IR 電子部品, 半導体
ISL9120IR
Typical Performance Curves
1.5 85
1.0 80
VIN = 3V
VIN = 3.6V
0.5 75
0
-0.5
VIN = 2.5V
-1.0
VIN = 4V
70
65
60
-1.5 55
-2.0
1
10 100
OUTPUT CURRENT (mA)
FIGURE 5. OUTPUT VOLTAGE vs LOAD CURRENT
1000
50
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN (V)
FIGURE 6. QUIESCENT CURRENT vs INPUT VOLTAGE (EN = HIGH)
EN (2V/DIV)
EN (2V/DIV)
VOUT (1V/DIV)
VOUT (1V/DIV)
IL (500mA/DIV)
400µs/DIV
FIGURE 7. SOFT-START (VIN = 4V, VOUT = 3.3V, NO LOAD)
EN (2V/DIV)
VOUT (1V/DIV)
IL (500mA/DIV)
400µs/DIV
FIGURE 8. SOFT-START (VIN = 4V, VOUT = 3.3V, 0.5A RLOAD)
EN (2V/DIV)
VOUT (1V/DIV)
IL (500mA/DIV)
400µs/DIV
FIGURE 9. SOFT-START (VIN = 3V, VOUT = 3.3V, NO LOAD)
Submit Document Feedback
6
IL (500mA/DIV)
400µs/DIV
FIGURE 10. SOFT-START (VIN = 3V, VOUT = 3.3V, 0.5A RLOAD)
FN8743.1
February 2, 2016

6 Page



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部品番号部品説明メーカ
ISL9120IR

Compact High Efficiency Low Power Buck-Boost Regulator

Intersil
Intersil


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