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4A Low Quiescent Current High Efficiency Synchronous Buck Regulator

封装信息

CAD 模型: View CAD Model
Pkg. Type: QFN
Pkg. Code: LJV
Lead Count (#): 16
Pkg. Dimensions (mm): 3.99 x 3.99 x 0.90
Pitch (mm): 0.65

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 (ISL78214ARZ-T) 下载

产品属性

Lead Count (#) 16
Carrier Type Reel
Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +105°C
Country of Assembly MALAYSIA
Country of Wafer Fabrication UNITED STATES
BOM Total Footprint (mm2) 258.1
Control Type Current Mode
Duty Cycle (%) 100 - 100
IQ [Rail 1] (µA) 35
Input Voltage (Max) [Rail 1] (V) 5.5 - 5.5
Input Voltage (Min) [Rail 1] (V) 2.8
Length (mm) 4
MOQ 6000
Output Current (Max) [Rail 1] (A) 4
Output Voltage (Max) (V) 5.5
Output Voltage (Max) [Rail 1] (V) 5.5
Output Voltage (Min) (V) 0.8
Output Voltage (Min) [Rail 1] (V) 0.8
Outputs (#) 1
POR No
Parametric Category Buck Regulators (Integrated FETs)
Peak Efficiency (%) 97
Pitch (mm) 0.7
Pkg. Dimensions (mm) 4.0 x 4.0 x 0.90
Pkg. Type QFN
Qualification Level Automotive
Quiescent Current 35 µA
Switching Frequency (KHz) 1 - 1
Switching Frequency Range (Typical) (kHz) 1000 - 1000
Thickness (mm) 0.9
Topology [Rail 1] Buck
Width (mm) 4

描述

The ISL78214 is a high efficiency, monolithic, synchronous step-down DC/DC converter that can deliver up to 4A continuous output current from a 2. 8V to 5. 5V input supply. It uses a current control architecture to deliver very low duty cycle operation at high frequency with fast transient response and excellent loop stability. The ISL78214 integrates a pair of low ON-resistance P-Channel and N-Channel internal MOSFETs to maximize efficiency and minimize external component count. The 100% duty-cycle operation allows less than 400mV dropout voltage at 4A output current. High 1MHz Pulse-width Modulation (PWM) switching frequency, that can be synchronization up to 4MHz with an external clock, allows the use of small external components and SYNC input enables multiple ICs to synchronize out of phase to reduce ripple and eliminate beat frequencies. The ISL78214 can be configured for discontinuous or forced continuous operation at light load. Forced continuous operation reduces noise and RF interference while discontinuous mode provides high efficiency by reducing switching losses at light loads. Fault protection is provided by internal hiccup mode current limiting during short circuit and overcurrent conditions, an output overvoltage comparator and over-temperature monitor circuit. A power-good output voltage monitor indicates when the output is in regulation. The ISL78214 is offered in a space saving 4x4 QFN lead free package with exposed pad lead frames for low thermal. The ISL78214 offers a 1ms Power-good (PG) timer at power-up. When shutdown, ISL78214 discharges the output capacitor. Other features include internal soft-start, internal compensation, overcurrent protection and thermal shutdown. The ISL78214 is offered in a 16 Ld 4mmx4mm QFN package with 1mm maximum height. The complete converter occupies less than 0. 4in2 area. The ISL78214 is AEC-Q100 qualified. The ISL78214 is rated for the automotive temperature range -40°C to +105°C.