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LMZ14201TZ-ADJ データシート(PDF) 3 Page - Texas Instruments

部品番号 LMZ14201TZ-ADJ
部品情報  LMZ14201 1A SIMPLE SWITCHER짰 Power Module with 42V Maximum Input Voltage
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LMZ14201TZ-ADJ データシート(HTML) 3 Page - Texas Instruments

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Exposed Pad
Connect to GND
5
SS
6
FB
3
EN
1
VIN
2
RON
4
GND
7
VOUT
VIN
CIN
10 PF
Enable
RON
See Table
RFBT
CFF
0.022 PF
See Table
CSS
0.022 PF
RFBB
See Table
100 PF
LMZ14201
VOUT @ 1A
5V
5.62k
1.07k
100k
7.5...42V
VOUT RFBT
RFBB
RON
VIN Range
3.3V
3.32k
1.07k
61.9k
6...42V
2.5V
2.26k
1.07k
47.5k
6...30V
1.8V
1.87k
1.50k
32.4k
6...25V
1.5V
1.00k
1.13k
28.0k
6...21V
1.2V
4.22k
8.45k
22.6k
6...19V
0.8V
0
39.2k
24.9k
6...18V
LMZ14201
www.ti.com
SNVS649E – JANUARY 2010 – REVISED MARCH 2013
Simplified Application Schematic
Connection Diagram
Figure 2. Top View
7-Lead PFM
Pin Descriptions
Pin
Name
Description
1
VIN
Supply input — Nominal operating range is 6V to 42V . A small amount of internal capacitance is contained within the
package assembly. Additional external input capacitance is required between this pin and exposed pad.
2
RON
On Time Resistor — An external resistor from VIN to this pin sets the on-time of the application. Typical values range from
25k to 124k ohms.
3
EN
Enable — Input to the precision enable comparator. Rising threshold is 1.18V nominal; 90 mV hysteresis nominal.
Maximum recommended input level is 6.5V.
4
GND
Ground — Reference point for all stated voltages. Must be externally connected to EP.
5
SS
Soft-Start — An internal 8 µA current source charges an external capacitor to produce the soft-start function. This node is
discharged at 200 µA during disable, over-current, thermal shutdown and internal UVLO conditions.
6
FB
Feedback — Internally connected to the regulation, over-voltage, and short-circuit comparators. The regulation reference
point is 0.8V at this input pin. Connected the feedback resistor divider between the output and ground to set the output
voltage.
7
VOUT
Output Voltage — Output from the internal inductor. Connect the output capacitor between this pin and exposed pad.
EP
EP
Exposed Pad — Internally connected to pin 4. Used to dissipate heat from the package during operation. Must be
electrically connected to pin 4 external to the package.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Copyright © 2010–2013, Texas Instruments Incorporated
Submit Documentation Feedback
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