参数资料
| 型号： | ISL9112IRT7Z-T7A |
| 厂商： | Intersil |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC 5V 12TDFN |
| 标准包装： | 1 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 5V |
| 输入电压： | 1.8 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 2.5MHz |
| 电流 - 输出： | 1.2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 12-TDFN-EP（3x3） |
| 其它名称： | ISL9112IRT7Z-T7ADKR |
1.2A High Efficiency Buck-Boost Regulators
ISL9110, ISL9112
The ISL9110 and ISL9112 are highly-integrated Buck-Boost
switching regulators that accept input voltages either above or
below the regulated output voltage. Unlike other Buck-Boost
regulators, these regulators automatically transition between
operating modes without significant output disturbance.
Both parts are capable of delivering up to 1.2A output current,
and provide excellent efficiency due to their fully synchronous
4-switch architecture. No-load quiescent current of only 35μA
also optimizes efficiency under light-load conditions. Forced
PWM and/or synchronization to an external clock may also be
selected for noise sensitive applications.
The ISL9110 is designed for standalone applications and
supports 3.3V and 5V fixed output voltages or variable output
voltages with an external resistor divider. Output voltages as low
as 1V, or as high as 5.2V are supported using an external resistor
divider.
The ISL9112 supports a broader set of programmable features
that may be accessed via an I 2 C bus interface. With a
programmable output voltage range of 1.9V to 5V, the ISL9112
is ideal for applications requiring dynamically changing supply
voltages. A programmable slew rate can be selected to provide
smooth transitions between output voltage settings.
The ISL9110 and ISL9112 require only a single inductor and very
few external components. Power supply solution size is
minimized by a tiny 3mmx3mm package and a 2.5MHz
switching frequency, which further reduces the size of external
components.
Features
? Accepts Input Voltages Above or Below Regulated Output
Voltage
? Automatic and Seamless Transitions Between Buck and Boost
Modes
? Input Voltage Range: 1.8V to 5.5V
? Output Current: Up to 1.2A
? High Efficiency: Up to 95%
? 35μA Quiescent Current Maximizes Light-load Efficiency
? 2.5MHz Switching Frequency Minimizes External Component
Size
? Selectable Forced-PWM Mode and External Synchronization
? I 2 C Interface (ISL9112)
? Fully Protected for Overcurrent, Over-temperature and
Undervoltage
? Small 3mmx3mm TDFN Package
Applications
? Regulated 3.3V from a Single Li-Ion Battery
? Smart Phones and Tablet Computers
? Handheld Devices
? Point-of-Load Regulators
Related Literature
? See AN1648 “ISL9110IRTNEVAL1Z, ISL9110IRT7EVAL1Z,
ISL9110IRTAEVAL1Z Evaluation Board User Guide”
? See AN1647 “ISL9112IRTNEVAL1Z, ISL9112IRT7EVAL1Z
EvaluationBoard User Guide”
100
LX2
VIN
VOUT 1
MODE
EN
FB 12
BAT
PG
V IN =
1.8V TO 5.5V
C1
10μF
STATUS
OUTPUTS
ISL9110IRTNZ
5 PVIN LX1 4
10
9
8
7
6 2
L1
2.2μH
V OUT =
3.3V/1A
C2
10μF
95
90
85
80
V IN = 3V
V IN = 5V
V IN = 2.5V
75
V OUT = 3.3V
70
0.01
0.05
0.25
1.25
I OUT (A)
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. EFFICIENCY
July 13, 2012
FN7649.2
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. 2011, 2012. 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL9112IRTNEVAL1Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:1.2A High Efficiency Buck-Boost Regulators |
| ISL9112IRTNZ | 制造商:Intersil Corporation 功能描述: 制造商:Intersil Corporation 功能描述:1.2A SINGLE INDUCTOR BUCK-BOOST, 3.3V, 12LD 3X3 EP TDFN - Trays |
| ISL9112IRTNZ-EVAL1Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:1.2A High Efficiency Buck-Boost Regulators Output Current: Up to 1.2A |
| ISL9112IRTNZ-T | 制造商:Intersil Corporation 功能描述:1.2A SINGLE INDUCTOR BUCK-BOOST, 3.3V, 12LD 3X3 EP TDFN - Tape and Reel |
| ISL9112IRTNZ-T7A | 功能描述:IC REG BUCK BST SYNC 3.3V 12TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:1 系列:EZBuck™ 类型:降压（降压） 输出类型:可调式 输出数:1 输出电压:0.8 V ~ 22.1 V 输入电压:3 V ~ 26 V PWM 型:电流模式 频率 - 开关:1.5MHz 电流 - 输出:1.8A 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 包装:剪切带 (CT) 供应商设备封装:8-DFN（2x2） 其它名称:785-1276-1 |
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