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Ultra-Low IQ Buck-Boost Regulator with Bypass

封装信息

CAD 模型: View CAD Model
Pkg. Type: DFN
Pkg. Code: LBU
Lead Count (#): 8
Pkg. Dimensions (mm): 2.01 x 3.00 x 0.90
Pitch (mm): 0.5

环境和出口类别

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (ISL9122AIRNZ-T) 下载

产品属性

Lead Count (#) 8
Carrier Type Reel
Moisture Sensitivity Level (MSL) 1
Pitch (mm) 0.5
Pkg. Dimensions (mm) 2.0 x 3.0 x 0.90
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Country of Assembly MALAYSIA
Country of Wafer Fabrication TAIWAN
Control Type Hysteretic Mode
IQ [Rail 1] (µA) 1.3
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) 2
Longevity 2033 12月
MOQ 6000
Output Current (Max) [Rail 1] (A) 0.5
Output Voltage (Max) (V) 5.375
Output Voltage (Max) [Rail 1] (V) 5.375
Output Voltage (Min) (V) 1.8
Output Voltage (Min) [Rail 1] (V) 1.8
Outputs (#) 1
POR Yes
Parametric Category Buck-boost Regulators (Integrated FETs)
Peak Efficiency (%) 97
Pkg. Type DFN
Price (USD) $1.32618
Qualification Level Standard
Quiescent Current 1.3 µA
SYNCH Capability No
Switching Frequency (MHz) 2.5 - 2.5
Temp. Range (°C) -40 to +85°C
Thickness (mm) 0.9
Topology [Rail 1] Buck-Boost
Width (mm) 3

描述

The ISL9122A is a highly integrated non-inverting buck-boost switching regulator that accepts input voltages both above or below the regulated output voltage. It features an extremely low quiescent current consumption of 1300nA in Regulation mode, 120nA in Forced Bypass mode, and 8nA in Shutdown mode. It provides 84% efficiency at 10µA load (VIN = 3.6V, VOUT = 3.3V) and has a peak efficiency greater than 97%. It supports input voltages from 1.8V to 5.5V.

The ISL9122A has automatic bypass functionality for situations in which the input voltage is close to the output voltage, and it automatically transitions between Buck and Boost modes without significant output disturbance. In addition to the automatic bypass functionality, the Forced Bypass power-saving mode can be chosen if voltage regulation is not required. Forced Bypass power saving mode is accessible using the I2C interface bus.

The ISL9122A is capable of delivering up to 500mA of output current (VIN = 3.6V, VOUT = 3.3V) and provides excellent efficiency because of its adaptive frequency hysteretic control architecture.

The ISL9122A is designed for stand-alone applications and supports a default output voltage at Power-On Reset (POR). After POR, the output voltage can be adjusted in the range of 1.8V to 5.375V by using the I2C interface bus. Specific default output voltages are available on request.

The ISL9122A requires only a single EIA 0603 size inductor and two external capacitors. Power supply solution size is minimized by a 1.8mm x 1.0mm WLCSP and is also available in a 3.0mm x 2.0mm 8 Ld plastic DFN.