参数资料
型号: IRDC3839
厂商: International Rectifier
文件页数: 1/35页
文件大小: 0K
描述: KIT EVAL REG 6A SUPIRBUCK DC/DC
标准包装: 1
系列: SupIRBuck™
主要目的: DC/DC,LDO 步降
输出及类型: 1,非隔离
输出电压: 1.8V
电流 - 输出: 6A
输入电压: 12V
稳压器拓扑结构: 降压
频率 - 开关: 600kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: IR3839
PD97513
IR3839MPbF
Sup IR Buck
TM
HIGHLY INTEGRATED 6A
SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
Description
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Greater than 96% Maximum Efficiency
Single 16V Application
Single 5V Application
Wide Output Voltage Range: 0.6V to 0.9*Vin
Continuous 6A Load Capability
Programmable Switching Frequency up to 1.5MHz
Internal Digital Soft-Start
Enable Input with Voltage Monitoring Capability
Hiccup Mode Over Current Protection
Internal LDO
External Synchronization
Enhanced PreBias Start up
External Reference for Margining Purposes
Input for Tracking Applications
Integrated MOSFET Drivers and Bootstrap Diode
Operating Junction Temp: -40 o C <Tj<125 o C
Thermal Shut Down
Power Good Output with tracking capability
Over Voltage Detection Feature
Pin Compatible with 10A and 14A Versions
Small Size 5mmx6mm PQFN, 0.9 mm Height
Lead-free, Halogen-free and RoHS Compliant
The IR3839 SupIRBuck TM is an easy-to-use, fully
integrated and highly efficient DC/DC regulator.
The onboard PWM controller and MOSFETs
make IR3839 a space-efficient solution, providing
accurate power delivery for low output voltage
applications.
IR3839 is a versatile regulator which offers
programmability of switching frequency and
current limit while operates in wide input and
output voltage range.
The switching frequency is programmable from
250kHz to 1.5MHz for an optimum solution.
It also features important protection functions,
such as Pre-Bias startup, hiccup current limit and
thermal shutdown to give required system level
security in the event of fault conditions.
IR3839 offers margining capability through Vref
pin. During the margining operation, PGood
tracks Vref via feedback to ensure correct status
of the output voltage.
Applications
? Netcom and Telecom Applications
? Data Center Applications
? Distributed Point of Load Power Architectures
The internal LDO enables the device to operate
from a single supply. This internal LDO can be
bypassed when an external bias voltage is
available.
Fig. 1. Typical application diagram
Rev 1.41
1
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