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TL2575-15IN データシート(PDF) 1 Page - Texas Instruments

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部品番号 TL2575-15IN
部品情報  1-A Simple Step-Down Switching Voltage Regulators
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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TL2575-15IN データシート(HTML) 1 Page - Texas Instruments

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Internal
Regulator
On/Off
_
+
_
+
1.23-V
Band-Gap
Reference
52-kHz
Oscillator
Reset
Thermal
Shutdown
Current
Limit
FEEDBACK
4
CIN
+
VIN
1
Unregulated
DC Input
GND
3
OUTPUT
2
ON/OFF
5
COUT
+
D1
L
O
A
D
VOUT
1-A
Switch
Driver
Fixed-Gain
Error Amplifier
Comparator
R2
R1
1 k
3.3 V: R2 = 1.7 k
5 V: R2 = 3.1 k
12 V: R2 = 8.84 k
15 V: R2 = 11.3 k
ADJ: R1 = Open, R2 = 0
L1
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Folder
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Buy
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Community
TL2575, TL2575HV
SLVS638C – JANUARY 2006 – REVISED NOVEMBER 2014
TL2575, TL2575HV 1-A Simple Step-Down Switching Voltage Regulators
1 Features
3 Description
The TL2575 and TL2575HV devices provide all the
1
Fixed 3.3-V, 5-V, 12-V, and 15-V Options with
active functions needed for a step-down (buck)
±5% Regulation (Max) Over Line, Load, and
switching regulator in an integrated circuit. They
Temperature Conditions
require four to six external components for operation.
Adjustable Option With a Range of 1.23 V to 37 V
They accept a wide input-voltage range of up to 60 V
(57 V for HV Version) and ±4% Regulation (Max)
(TL2575-HV) and are available in fixed output
Over Line, Load, and Temperature Conditions
voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustable-
output version. The TL2575 and TL2575HV devices
Specified 1-A Output Current
have an integrated switch capable of delivering 1 A of
Wide Input Voltage Range
load current, with excellent line and load regulation.
4.75 V to 40 V (60 V for HV Version)
The
device
also
offers
internal
frequency
compensation, a fixed-frequency oscillator, cycle-by-
Requires Only Four External Components (Fixed
cycle current limiting, and thermal shutdown. In
Versions) and Uses Readily Available Standard
addition, a manual shutdown is available via an
Inductors
external ON/OFF pin.
52-kHz (Typ) Fixed-Frequency Internal Oscillator
TTL Shutdown Capability With 50-
μA (Typ)
Device Information(1)
Standby Current
PART NUMBER
PACKAGE
BODY SIZE (NOM)
High Efficiency
PDIP (16)
19.31 mm x 6.35 mm
As High as 88% (Typ)
TL2575, TL2575HV
TO-263 (5)
10.16 mm x 8.93 mm
TO-220 (5)
10.16 mm x 8.82 mm
Thermal Shutdown and Current-Limit Protection
with Cycle-by-Cycle Current Limiting
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
Simple High-Efficiency Step-Down (Buck)
Regulators
Pre-Regulators for Linear Regulators
On-Card Switching Regulators
Positive-to-Negative Converters (Buck-Boost)
4 Functional Block Diagram
Pin numbers are for the KTT (TO-263) package.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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