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1.2A High Efficiency Buck-Boost Regulators

封装信息

CAD 模型:View CAD Model
Pkg. Type:TDFN
Pkg. Code:LET
Lead Count (#):12
Pkg. Dimensions (mm):3.0 x 3.0 x 0.75
Pitch (mm):0.4

环境和出口类别

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
RoHS (ISL9112IRT7Z-T7A)下载

产品属性

Lead Count (#)12
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
Pb Free CategoryPb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C)-40 to +85°C
Country of AssemblyMALAYSIA, TAIWAN
Country of Wafer FabricationTAIWAN
BOM Total Footprint (mm2)9
Control TypeCurrent Mode
IQ [Rail 1] (µA)35
Input Voltage (Max) (V)5.5
Input Voltage (Max) [Rail 1] (V)5.5 - 5.5
Input Voltage (Min) (V)1.8
Input Voltage (Min) [Rail 1] (V)1.8
Length (mm)3
MOQ250
Output Current (Max) [Rail 1] (A)1.2
Output Voltage (Max) (V)5
Output Voltage (Max) [Rail 1] (V)5
Output Voltage (Min) (V)1.9
Output Voltage (Min) [Rail 1] (V)1.9
Outputs (#)1
PORYes
Parametric CategoryBuck-boost Regulators (Integrated FETs)
Peak Efficiency (%)95
Pitch (mm)0.4
Pkg. Dimensions (mm)3.0 x 3.0 x 0.75
Pkg. TypeTDFN
Price (USD)$1.50985
Qualification LevelStandard
Quiescent Current35 µA
SYNCH CapabilityYes
Switching Frequency (KHz)2.75 - 2.75
Switching Frequency Range (Typical) (kHz)2500 - 2500
Thickness (mm)0.75
Topology [Rail 1]Buck-Boost
Width (mm)3

描述

The ISL9112 is a highly integrated buck-boost switching regulator that accepts input voltages either above or below the regulated output voltage. Unlike other buck-boost regulators, this regulator automatically transitions between operating modes without significant output disturbance.

The device is capable of delivering up to 1.2A output current and provides excellent efficiency due to its fully synchronous 4-switch architecture. A 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 ISL9112 supports a broader set of programmable features that may be accessed via an I2C 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 device requires only a single inductor and very few external components. A power supply solution size is minimized by a tiny 3mm x 3mm package and a 2.5MHz switching frequency, which further reduces the size of external components.