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LMZ31530 bảng dữ liệu(PDF) 7 Page - Texas Instruments

tên linh kiện LMZ31530
Giải thích chi tiết về linh kiện  30A SIMPLE SWITCHER짰 Power Module with 3.0V-14.5V Input in QFN Package
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LMZ31530
www.ti.com
SLVSBC7B – OCTOBER 2013 – REVISED DECEMBER 2013
PIN DESCRIPTIONS (continued)
TERMINAL
DESCRIPTION
NAME
NO.
11
22
23
24
Phase switch node. Do not place any external component on these pins or tie them to a pin of another
PH
25
function. Connect these pins using a copper area beneath pad 71.
26
27
28
71
42
43
PVIN
44
Input switching voltage pin. This pin supplies voltage to the power switches of the converter.
66
69
Power Good flag pin. This open drain output asserts low if the output voltage is more than approximately
PWRGD
19
±6% out of regulation.
Power Good pull-up pin. This pin is connected to a 100k
Ω resistor which is tied to the PWRGD pin internally.
PWRGD_PU
18
Connect this pin to V5V or to any voltage between 1.3V and 6.5V.
Remote sense connection. Connect this pin to VOUT at the load for improved regulation. This pin must be
SENSE+
14
connected to VOUT at the load, or at the module pins.
Slow-start select pin. Connect a resistor between this pin and PWRGD (or PGND) to select the slow-start
time. See the SS_SEL section of the datasheet for slow-start times and corresponding resistor values.
SS_SEL
3
Connect the SS_SEL pin to PGND to select Auto-skip Eco-mode or to the PWRGD pin (pin 19) to select
FCCM.
V5V
61
5V regulator pin. This regulator supplies the internal circuitry.
VADJ
13
Output voltage adjust pin. Connecting a resistor between this pin and AGND sets the output voltage.
2
VIN
Input bias voltage pins. Supplies the control circuitry of the power converter.
15
10
52
53
54
55
Output voltage. These pins are connected to the internal output inductor. Connect these pins to the output
VOUT
56
load and connect external bypass capacitors between these pins and PGND.
57
58
59
60
68
Copyright © 2013, Texas Instruments Incorporated
7
Product Folder Links: LMZ31530


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