参数资料
型号: TPS65530RSLTG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3.3 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PQCC48
封装: 6 X 6 MM, 0.40 MM PITCH, GREEN, PLASTIC, QFN-48
文件页数: 7/31页
文件大小: 931K
代理商: TPS65530RSLTG4
www.ti.com....................................................................................................................................................... SLVS744C – OCTOBER 2007 – REVISED MAY 2008
This device has a discharge switch (Q_Discharge2/4) for the CH2/4 output capacitor. The typical ON resistance
at the discharge switch is 1 k
. The discharge switch is activated when XSLEEP turns low. For CH4 only, the
switch is also activated when ENAFE turns low. After output voltage reaches approximately 0.5 V, the discharge
switch turns OFF and VOUT2/VOUT4 is changed into high impedance. The output voltage is programmable from 2.5
V to 3.6 V (for CH2) or from 2.2 V to 3.6 V (for CH4) to use the feedback loop sensed by the external
resistances. The output voltage is calculated by Equation 4. The block diagram is shown in Figure 5.
VOUT = (1 + R2/R1) × 0.6 [V]
(4)
Where:
VOUT = Output voltage [V]
R1, R2 = Feedback resistance (see Figure 5)
Figure 5. CH2/4 Block Diagram
Copyright 2007–2008, Texas Instruments Incorporated
15
Product Folder Link(s): TPS65530
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