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High Efficiency Buck-Boost Regulator with 4.1A Switches

封装信息

Pkg. Type: TQFN
Pkg. Code: LBC
Lead Count (#): 20
Pkg. Dimensions (mm): 3.99 x 3.00 x 0.75
Pitch (mm): 0.5

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (ISL91107IRTAZ) 下载

产品属性

Lead Count (#) 20
Carrier Type Tube
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +85°C
Country of Assembly TAIWAN
Country of Wafer Fabrication TAIWAN
Price (USD) 1.44011
Control Type Current Mode
IQ [Rail 1] (µA) 45
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) 4
Longevity 2033 12月
MOQ 750
Output Current (Max) [Rail 1] (A) 2
Output Voltage (Max) (V) 5.2
Output Voltage (Max) [Rail 1] (V) 2
Output Voltage (Min) (V) 1
Output Voltage (Min) [Rail 1] (V) 1
Outputs (#) 1
POR Yes
Parametric Category Buck-boost Regulators (Integrated FETs)
Peak Efficiency (%) 96
Pitch (mm) 0.5
Pkg. Dimensions (mm) 4.0 x 3.0 x 0.75
Pkg. Type TQFN
Qualification Level Standard
Quiescent Current 45 µA
SYNCH Capability No
Switching Frequency (KHz) 2.75 - 2.75
Switching Frequency Range (Typical) (kHz) 2250 - 2750
Thickness (mm) 0.75
Topology [Rail 1] Buck-Boost
Width (mm) 3

描述

The ISL91107IR 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.

This device is capable of delivering up to 2A of output current (PVIN = 2.8V, VOUT = 3.3V) and provides excellent efficiency due to its fully synchronous 4-switch architecture. A no-load quiescent current of only 45µA also optimizes efficiency under light load conditions.

The ISL91107IR is designed for standalone applications and supports 3.3V 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 ISL91107IR requires only a single inductor and very few external components. A power supply solution size is minimized by its 2.5MHz switching frequency, which further reduces the size of external components. The ISL91107IR is available in a 3mm x 4mm 20 Ld TQFN package. Alternatively, the ISL91107 is available in a 2.15mm x 1.51mm WLCSP package.