P1596-12-TB5-T [UTC]
Switching Regulator, Voltage-mode, 3.45A, 173kHz Switching Freq-Max, TO-220B, 5 PIN;
| 型号： | P1596-12-TB5-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | Switching Regulator, Voltage-mode, 3.45A, 173kHz Switching Freq-Max, TO-220B, 5 PIN 局域网 开关 |
| 文件： | 总7页 (文件大小：337K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
P1596
LINEAR INTEGRATED CIRCUIT
150KHZ, 1.5A PWM BUCK
DC/DC CONVERTER
DESCRIPTION
The UTC P1596 series is a step-down switching regulator able to
provide 1.5A output current. The available output voltages are 2.5V,
3.3V, 5V, 12V and an adjustable output version.
FEATURES
* Output load current: 1.5A
* Adjustable version output voltage range, 1.23V ~ 18V±4%
* 150KHz ±15% fixed switching frequency
* Voltage mode non-synchronous PWM control
* Thermal-shutdown and current-limit protection
* Operating voltage can be up to 24V
* Low power standby mode
* High efficiency
* Internal current and thermal limit
*Pb-free plating product number: P1596L
* Built-in switching transistor on chip
ORDERING INFORMATION
Ordering Number
Package
Packing
Normal
Lead Free Plating
P1596L-xx-TA5-T
P1596L-xx-TB5-T
P1596L-xx-TQ5-R
P1596L-xx-TQ5-T
P1596-xx-TA5-T
P1596-xx-TB5-T
P1596-xx-TQ5-R
P1596-xx-TQ5-T
TO-220-5
TO-220B
TO-263-5
TO-263-5
Tube
Tube
Tape Reel
Tube
Note: xx: Output Voltage, refer to Marking Information.
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Copyright © 2008 Unisonic Technologies Co., Ltd
QW-R103-027,H
P1596
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
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QW-R103-027,H
P1596
LINEAR INTEGRATED CIRCUIT
PIN DESCRIPTIONS
PIN NO.
PIN NAME
VIN
DESCRITION
Operating voltage input
1
2
3
4
5
Output
GND
Switching output
Circuit Ground
FB (Feedback) Output voltage feedback control
SD (Shutdown) ON/OFF shutdown
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
25:2.5V
33:3.3V
50:5.0V
12:12V
AD:ADJ
TO-220-5
TO-220B
TO-263-5
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
TO-220B
TO-220-5
TO-263-5
3
3
4
Thermal Resistance Junction to Case
θJC
°С/W
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P1596
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCC
RATINGS
28
UNIT
V
Maximum Supply Voltage
Operating Voltage
VOPR
VON/OFF
VFB
4.5 ~ 22
V
ON/OFF Pin Input Voltage
Feedback Pin Voltage
-0.3 ~ +18
-0.3 ~ +18
-1
V
V
Output Voltage to Ground (Steady State)
Power Dissipation
VOUT
PD
V
Internally limited
-40 ~ +125
-65 ~ +150
W
°С
°С
Operating Temperature
Storage Temperature
TOPR
TSTG
Note Absolute maximum ratings are those values beyond which the device which the device could be permanently
damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(TJ=25°С, VIN=12V for the 2.5V 3.3V, 5V, and Adjustable version and VIN=24V for the 12V version, ILOAD=500mA.)
PARAMETER
SYMBOL
TEST CONDITIONS
3.8V≦VIN≦24V, 0.2A≦ILOAD≦1.5A
4.75V≦VIN≦24V, 0.2A≦ILOAD≦1.5A
7V≦VIN≦24V, 0.2A≦ILOAD≦1.5A
15V≦VIN≦24V, 0.2A≦ILOAD≦1.5A
VIN=12V, ILOAD=1.5A
MIN TYP MAX UNIT
2.5V
3.3V
5.0V
12V
2.4
2.5
2.6
V
V
3.168 3.3 3.432
Output Voltage
VOUT
4.8
5.0
12
73
73
80
72
5.2
V
11.52
12.48
V
2.5V
3.3V
5.0V
12V
%
%
%
%
VIN=12V, ILOAD=1.5A
Efficiency
η
VIN=12V, ILOAD=1.5A
VIN=24V, ILOAD=1.5A
UTC P1596-ADJ
4.75V≦VIN≦24V, 0.2A≦ILOAD≦1.5A
Output Feedback
VFB
1.193 1.23 1.267
78
V
VOUT Programmed for 3V
Efficiency
η
VIN=12V, ILOAD=1.5A
%
ALL OUTPUT VOLTAGE
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
IBIAS
fOSC
VSAT
Adjustable Version Only, VFB=1.3V
-10
150
1.25
100
0
-50
173
1.4
nA
KHz
V
(Note 1)
127
1.8
IOUT=2A (Note 2, 3)
(Note 3)
(Note 4)
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
DC
ICL
IL
%
Current Limit
Peak Current (Notes 2, 3)
Output=0V (Notes 2, 4)
Output=-1V (Note 5)
(Note 4)
2.25 3.45
A
-200
-5
μA
mA
mA
μA
Output Leakage Current
Quiescent Current
IQ
5
10
Standby Quiescent Current
ISTBY ON/OFF Pin=5V (OFF) (Note 5)
70
150
Note 1: The switching frequency is reduced when the second stage current limit is activated.
2: No diode, inductor or capacitor connected to output pin.
3: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
4: Feedback pin removed from output and connected to 12V for the 2.5V 3.3V, 5V, and the ADJ. version, and
15V for the 12V version, to force the output transistor switch OFF.
5: VIN = 24V
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P1596
TYPICAL APPLICATION
LINEAR INTEGRATED CIRCUIT
FOR ADJUSTABLE OUTPUT VOLTAGE VERSION
VOUT×(R1/(R1+ R2))=VREF
VOUT = VREF(1+ R2/R1)
Where VREF=1.23V
R2=R1((VOUT / VREF)-1)
FOR FIXED OUTPUT VOLTAGE VERSIONS
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P1596
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Output Voltage v.s. Temperature
(VIN=12V, IOUT=1.5A)
Efficiency v.s. Temperature
(VIN=12V, VOUT=3.3V, IOUT=1.5A)
3.4
3.35
3.3
82
81
80
3.25
3.2
79
78
77
76
3.15
3.1
3.05
3
75
74
-40 -20
0
20 40 60 80 100 120 140
-50 -30 -10 10 30 50 70 90 110 130
Temperature, Ta (°С)
Temperature, Ta (°С)
Saturation Voltage v.s. Temperature
(VCC=12V, VFB=0V, VSD=0)
Switch Current Limit v.s. Temperature
(VCC=12V, VFB=0V)
1.5
1.4
1.3
3.5
1.5A
1.2
1.1
1
3
2.5
2
1A
0.9
0.5A
0.8
0.7
0
50
75 100 125
90
-50
-25
25
-50
-30 -10
10
30
50
70
Temperature, Ta (°С)
Temperature, Ta (°С)
Supply Current v.s. Temperature
(VCC=12V, No Load,
Supply Current v.s. Temperature
(VCC=12V, No Load,
VON/OFF=0V,(Switch ON))
VON/OFF=5V,(Switch OFF))
13
12
11
60
55
50
45
40
35
30
10
9
Switch OFF
8
Switch ON
7
6
5
-50 -30 -10
10
Temperature, Ta (°С)
130
90 110
130 150
50 70
30
-50 -30 -10 10 30 50 70 90 110
Temperature, Ta (°С)
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P1596
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS (Cont.)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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QW-R103-027,H
相关型号：
P1596-12-TQ5-R
Switching Regulator, Voltage-mode, 3.45A, 173kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN
UTC
P1596-12-TQ5-T
Switching Regulator, Voltage-mode, 3.45A, 173kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN
UTC
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