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DP2596 데이터시트 PDF




DT-SEMI에서 제조한 전자 부품 DP2596은 전자 산업 및 응용 분야에서
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부품번호 DP2596 기능
기능 3A 150KHz Step-Down Voltage Regulator
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DP2596 데이터시트, 핀배열, 회로
DP2596
3A 150KHz Step-Down Voltage Regulator
General Description
Features
The DP2596 regulator is monolithic integrated
3.3V, 5V, 12V, 15V, and adjustable output
circuit that provide all the active function for a
versions
step-down (buck) switching regulator, capable of
Adjustable version output voltage range,
driving 3A load with excellent line and load
1.23V to 37V ±4% max over line and load
regulator. These devices are available in fixed output
conditions
voltage of 3.3V, 5V, 12V, 15V, and adjustable output
Guaranteed 3A output current
version.
Wide input voltage range, 7V to 40V
Requiring a minimum number of external
Requires only 4 external components
components, these regulators are simple to use and
150KHz fixed frequency internal oscillator
include internal frequency compensation and a fixed
TTL shutdown capability, low power standby
frequency oscillator.
mode
The DP2596 offer a high efficiency replacement for
High efficiency
popular three terminal linear regulators. It
Uses readily available standard inductors
substantiality reduces the size of the heat sink, and
Thermal shutdown and current limit protection
in some cases no heat sink is required.
A standard series of inductors optimized for use Application
with the DP2596 are available from several different
Simple high-efficiency step-down (buck)
manufacturers. This feature greatly simplifies the
regulator
design of switch-mode power supplies.
Efficient pre-regulator for linear regulators
Other features include a guaranteed ±4%
On-card switching regulator
tolerance on output voltage within specified input
Positive to negative converter (Buck-Boost)
voltages and output load conditions, and 10% on the
Power Supply for Battery Chargers
oscillator frequency. External shutdown is included,
Negative Step-Up Converters
featuring 80uA (typical) standby current. The output
switch includes cycle-by-cycle current limiting, as
well as thermal shutdown for full protection under
fault conditions.
Typical Application (Fixed Output Voltage Versions)
REV : 1.0
2011-09-22
1 www.dt-semi.com




DP2596 pdf, 반도체, 판매, 대치품
DP2596
3A 150KHz Step-Down Voltage Regulator
Absolute Maximum Ratings
(About Maximum Ratings indicate limits beyond which damage to the device may occur.)
Parameter
Symbol
Value
Unit
Maximum Input Supply Voltage
ON/OFF Pin Input Voltage
Output Voltage to Ground
Storage Temperature Range
Minimum ESD Rating (Human Body
Model; C=100pF, R=1.5K)
Lead Temperature (Soldering, 10 Seconds)
Maximum Junction Temperature
VIN
VO
TSGT
TJ
45
-0.3VV+25
-1.0
-65 to +150
2.5
260
150
V
V
V
KV
Recommended Operating Conditions (Operating Ratings indicate conditions for which the
device is intended to be functional, but do not guarantee specific performance limits. For guaranteed
specifications and test conditions, see the Electrical Characteristics.)
Parameter
Symbol
Value
Unit
Operating junction Temperature Range
Supply Voltage
Tj
VIN
-40 to 125
40
V
Thermal Information
Parameter
Thermal Resistance, Junction to
Ambient
Thermal Resistance, Junction to
Case
Symbol
PθJA
PθJC
Package
TO-220
TO-220V
TO-263
TO-220
TO-220V
TO-263
Maximum
65
65
70
70
70
5.0
Unit
/W
/W
REV : 1.0
2011-09-22
4 www.dt-semi.com

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DP2596 전자부품, 판매, 대치품
DP2596
3A 150KHz Step-Down Voltage Regulator
ON/OFF CONTROL
ON/OFF Pin Logic Input Level, VOUT = 0V
VIH TJ =25°C
1.3 0.6 V
TJ = 0°C to +125°C
- 0.6
ON/OFF Pin Logic Input Level, VOUT = Nominal Output
Voltage
VIL TJ =25°C
2.0 1.3
V
-
TJ = 0°C to +125°C
2.0 -
-
IIH ON/OFF Pin Input Current, VIH = 2.5V (OFF)
IIL ON/OFF Pin Input Current, VIL = 0.5V (ON)
- 5 15
µA
0.02 5
Note 1 : External components such as the catch diode, inductor, input and output capacitors can affect switching
regulator system performance. When the DP2596 is used as shown in the Figure 2 test circuit, system performance
will be as shown in system parameters section of Electrical Characteristics.
Note 2 : Tested junction temperature range for the DP2596 : TJ = 0°C to +125°C
Note 3: The oscillator frequency reduces to approximately 18KHz in the event of an output short or an overload
which causes the regulated output voltage to drop approximately 40% from the nominal output voltage. This self
protection feature lowers the average power dissipation of the 1C by lowering the minimum duty cycle from 5%
down to approximately 2%.
Note 4 : Output pin sourcing current. No diode, inductor or capacitor connected to output pin.
Note 5 : Feedback pin removed from output and connected to 0V.
Note 6 : Feedback pin removed from output and connected to a 12V for Adjustable, 3.3V and 5V versions, and a
25V for Adjustable, 12V and 15V versions, to force the output transistor OFF.
Note 7 : VIN = 40V
REV : 1.0
2011-09-22
7 www.dt-semi.com

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부품번호상세설명 및 기능제조사
DP2596

3A 150KHz Step-Down Voltage Regulator

DT-SEMI
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