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R2J20701NP Datasheet

  • R2J20701NP

  • Peak Current Mode Synchronous Buck Controller with Power MOS...

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R2J20701NP
Peak Current Mode Synchronous Buck Controller
with Power MOS FETs
REJ03G1459-0300
Rev.3.00
Jun 20, 2007
Description
This all-in-one SiP for POL (point-of-load) applications is a multi-chip module incorporating a high-side MOS FET,
low-side MOS FET, and PWM controller in a single QFN package. The on and off timing of the power MOS FET is
optimized by the built-in driver circuit, making this device suitable for large-current high-efficiency buck converters.
In a simple peak-current mode topology, stable operation is obtained in a closed power loop, and a fast converter is
easily realized with the addition of simple components. Furthermore, the same topology can be applied to realize
converters for parallel synchronized operation with current sharing, and two-phase operation.
The package also incorporates a high-side bootstrap Schottky barrier diode (SBD), eliminating the need for an external
SBD for this purpose.
Features
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Three chips in one package for high-efficiency and space saving
Large average output current (35 A)
Wide input voltage range: 8 to 14 V
0.6 V reference voltage accurate to within 1%
Wide programmable switching frequency: 200 kHz to 1 MHz
Fast response by peak-current-mode topology.
Simple current sharing (up to five modules in parallel)
Two-phase operation in parallel operation
Built-in SBD for boot strapping
On/off control
Hiccup operation under over load condition
Tracking function
Thin small package: 56-pin QFN (8 mm
脳
8 mm)
Applications
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Network equipment
Telecommunications equipment
Servers
POL modules
Typical Characteristic Curve
95
Efficiency (%)
90
85
80
75
0
5
10
15
20
25
30
35
VIN = 12 V
VOUT = 1.8 V
L = 440 nH
CO = 600
碌F
Frequency = 500 kHz
No airflow
Ta = 27擄C
Iout (A)
REJ03G1459-0300 Rev.3.00 Jun 20, 2007
Page 1 of 27

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  • 英文版
    R2J20601NP_Renesas.pdf
    Renesas
  • 英文版
    Peak Current Mode Synchronous Buck Controller with Power MOS...
    RENESAS
  • 英文版
    Peak Current Mode Synchronous Buck Controller with Power MOS...
    Renesas Technol...

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