ZTP7193KT
3A, 18V, 650KHz, Synchronous Step-Down DC/DC Converter
FEATURES
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DESCRIPTION
4.5V to 18V input voltage
Output adjustable from 0.765V to 15V
Output current up to 3A
Integrated 85mΩ/45mΩ power MOSFET switches
Shutdown current 3μA typical
Efficiency up to 95%
Fixed frequency 650KHz
Internal soft start
Over current protection and Hiccup
Over temperature protection
RoHS Compliant and 100% Lead (Pb) Free
The ZTP7193KT is a high-frequency, synchronous,
rectified, step-down, switch-mode converter with
internal power MOSFETs. It offers a very compact
solution to achieve a 3A continuous output current over
a wide input supply range, with excellent load and line
regulation. The ZTP7193KT has synchronous-mode
operation for higher efficiency over the output
current-load range.
Current-mode operation provides fast transient
response and eases loop stabilization.
Protection features include over-current protection and
thermal shutdown.
The ZTP7193KT requires a minimal number of readily
available, standard external components and is available
in a space-saving TSOT23-6L package.
APPLICATIONS
Distributed power systems
Networking systems
● FPGA, DSP, ASIC power supplies
● Notebook computers
● Green electronics or appliance
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Pins Configuration
Top View
TSOT23-6L
ORDERING INFORMATION
GND 1
PART
PACKAGE
RoHS
Ship, Quantity
ZTP7193KT
TSOT23-6L
Yes
Tape and Reel
6 BOOT
SW 2
5 EN
IN 3
4 FB
Typical Application Circuit
Input
C1
10μF/25V
Ceramic
R4
100k
R5
5
C7
0.1μF
3
IN
EN
C5 100nF
6
BOOT
SW 2
ZTP7193KT
GND
1
FB 4
RT(opt)
L1
4.7μH
Output
3.3V/3A
R1 47kΩ
Cff(opt)
R2
14.2kΩ
C2
22μF/6.3V
Ceramic x 2
Note: R5 and C7 are optional.
Note: RT and Cff are optional.Users can adjust the RT and Cff value according to their bandwidth requirements.
Details please see the DVT report.
DS-11
Copyright © ZillTek Technology Corp.
-1-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTP7193KT
Absolute Maximum Ratings
Recommended Operating Conditions
Supply Voltage VIN ……...…………...…….……… 4.5V to 18V
Output Voltage VOUT ……...…………...…….. 0.765V to VIN–3V
Operating Temperature Range ……...…… –40°C to +125°C
Supply Voltage VIN ……………………………….... –0.3V to +19V
Switch Node VSW ………………………………. –0.3V to VIN+0.3V
-0.3V(-5V for
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