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參數資料
| 型號： | PTN78000WAST |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 660 kHz SWITCHING FREQ-MAX, DMA5 |
| 文件頁數： | 1/26頁 |
| 文件大?。?/td> | 634K |
| 代理商： | PTN78000WAST |
1
FEATURES
DESCRIPTION
APPLICATIONS
STANDARD APPLICATION
PTN78000
(Top View)
1
1
2
3
5
4
+
R
SET
(B)
0.05 W, 1 %
(Required)
C
I
(A)
Ceramic
(Required)
C
O
(A)
100 mF
Electrolytic
(Required)
V
O
GND
V
I
Inhibit
GND
www.ti.com...................................................................................................................................... SLTS230C – NOVEMBER 2004 – REVISED SEPTEMBER 2008
1.5-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR
1.5-A Output Current
Wide-Input Voltage
The
PTN78000
is
a
series
of
high-efficiency,
step-down Integrated Switching Regulators (ISR),
(7 V to 36 V) / (15 V to 36 V)
that represent the third generation in the evolution of
Wide-Output Voltage Adjust
the popular 78ST100 series of products. In new
(2.5 V to 12.6 V) / (11.85 V to 22 V)
designs it should be considered in place of the
High Efficiency (Up to 95%)
78ST100, PT78ST100, PT5100, and PT6100 series
of single in-line pin (SIP) products. The PTN78000 is
On/Off Inhibit
smaller and lighter than its predecessors, and has
Undervoltage Lockout
either similar or improved electrical performance
Output Current Limit
characteristics. The case-less, double-sided package,
also exhibits improved thermal characteristics, and is
Overtemperature Shutdown
compatible with TI's roadmap for RoHS and lead-free
Operating Temperature: –40°C to 85°C
compliance.
Surface Mount Package Available
Operating from a wide-input voltage range, the
PTN78000
provides
high-efficiency,
step-down
voltage conversion for loads of up to 1.5 A. The
General-Purpose, Industrial Controls,
output voltage is set using a single external resistor.
HVAC Systems, Test and Measurement,
The PTN78000W may be set to any value within the
Medical Instrumentation, AC/DC Adaptors,
range, 2.5 V to 12.6 V, and the PTN78000H from
Vehicles, Marine, and Avionics
11.85 V to 22 V. The output voltage of the
PTN78000W can be as little as 2 V lower than the
input, allowing operation down to 7 V, with an output
voltage of 5 V. The output voltage of the PTN78000H
can be as little as 3 V lower than the input, alowing
operation down to 15 V, with an output voltage of
12 V.
The PTN78000 has undervoltage lockout and an
integral on/off inhibit. The modules are suited to a
wide variety of general-purpose applications that
operate off 12-V, 24-V, or 28-VDC power.
(A) See the Application Information section for
capacitor
recommendations.
The
minimum
input
capacitance is 2.2
F for PTN78000W, and 9.4 F (2
x 4.7
F) for PTN78000H.
(B) RSET is required to adjust the output voltage
higher than 2.5 V for PTN78000W, and high than
11.824 V for PTN78000H. See the Application
Information section for specific values.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2004–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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| PTN78020AAS | 功能描述:DC/DC轉換器 4A Wide Inp/Neg Out Adj Module RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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