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3V to 40V Input, 1.2A Synchronous Buck Regulator with Integrated 500mA LDO

封装信息

CAD 模型: View CAD Model
Pkg. Type: TDFN
Pkg. Code: LUT
Lead Count (#): 22
Pkg. Dimensions (mm): 5.99 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)
HTS (US)

产品属性

Pkg. Type TDFN
Carrier Type Reel
Country of Assembly MALAYSIA
Country of Wafer Fabrication TAIWAN
Control Type Current Mode
Duty Cycle (%) 100 - 100
IQ [Rail 1] (µA) 2200
Input Voltage (Max) (V) 6
Input Voltage (Max) [Rail 1] (V) 6 - 6
Input Voltage (Max) [Rail 2] (V) 6 - 6
Input Voltage (Min) (V) 1.8
Input Voltage (Min) [Rail 1] (V) 1.8
Lead Count (#) 22
Length (mm) 6
MOQ 6000
Moisture Sensitivity Level (MSL) 3
Output Current (Max) [Rail 1] (A) 0.5
Output Current (Max) [Rail 2] (A) 0.5
Output Voltage (Max) (V) 5.5
Output Voltage (Max) [Rail 1] (V) 5.5
Output Voltage (Max) [Rail 2] (V) 5.5
Output Voltage (Min) (V) 0.5
Output Voltage (Min) [Rail 1] (V) 0.5
Outputs (#) 2
POR Yes
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Peak Efficiency (%) 94
Pitch (mm) 0.5
Pkg. Dimensions (mm) 6.0 x 3.0 x 0.75
Price (USD) $1.74008
Qualification Level Standard
Quiescent Current 2200 µA
SYNCH Capability Yes
Switching Frequency (KHz) 2 - 2
Switching Frequency Range (Typical) (kHz) 300 - 2000
Temp. Range (°C) -40 to +125°C
Thickness (mm) 0.75
Topology [Rail 1] Buck
Topology [Rail 2] LDO
Width (mm) 3

描述

The RAA212421 is a dual-output regulator combining a 3V to 40V input, 1.1A synchronous buck converter with a 500mA LDO featuring fast transient response. The combination of two high-performance power supplies in one compact 3mm x 6mm package provide an easy-to-use, high-efficiency compact solution. The wide VIN buck regulator of the RAA212421 integrates both high-side and low-side nMOSFETs and features a PFM mode for improved efficiency at light load. This feature can be disabled if forced PWM mode is desired. It can use internal or external compensation, which minimizes the required external components, reduces BOM count and complexity of design. The part switches at a default frequency of 500kHz; however, it can also be programmed using an external resistor from 300kHz to 2MHz. Other features include programmable soft-start, hiccup mode overcurrent protection, thermal shutdown, and power-good. The LDO also features state-of-the-art internal compensation that allows it to achieve very fast load transient response. The device provides an output accuracy of ±1.8% VOUT accuracy over all load, line, and temperature variations (TJ = -40°C to +125°C). Other features include soft-start and enable that allow the LDO to be placed into low quiescent current shutdown mode. The part is available in a small Pb-free 3mm x 6mm DFN plastic package with a full-range industrial temperature of -40°C to +125°C.