P1596L-12-G04-K [UTC]
Switching Regulator/Controller;型号: | P1596L-12-G04-K |
厂家: | Unisonic Technologies |
描述: | Switching Regulator/Controller |
文件: | 总7页 (文件大小:87K) |
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
1
1
ꢀ
DESCRIPTION
TO-220B-5
TO-220-5
The UTC P1596 series is a step-down switching regulator able to
provide 1.5A output current. The available output voltages are 3.3V,
5V, 12V and an adjustable output version.
1
1
TO-252-5
TO-263-5
ꢀ
FEATURES
*Output load current: 1.5A
*Adjustable version output voltage range, 1.23V ~ 18V±4%
*150KHz ±15% fixed switching frequency
1
*Voltage mode non-synchronous PWM control
*Thermal-shutdown and current-limit protection
*Operating voltage can be up to 22V
*Low power standby mode
SIP-4
*High efficiency
*Internal current and thermal limit
*Built-in switching transistor on chip
*Pb-free plating product number:P1596L
ꢀ ORDERING INFORMATION
Order Number
Package
Packing
Normal
Lead Free Plating
P1596L-xx-G04-K
P1596L-xx-TA5-T
P1596L-xx-TB5-T
P1596L-xx-TN5-R
P1596L-xx-TN5-T
P1596L-xx-TQ5-R
P1596L-xx-TQ5-T
P1596-xx-G04-K
P1596-xx-TA5-T
P1596-xx-TB5-T
P1596-xx-TN5-R
P1596-xx-TN5-T
P1596-xx-TQ5-R
P1596-xx-TQ5-T
SIP-4
Bulk
Tube
TO-220-5
TO-220B-5
TO-252-5
TO-252-5
TO-263-5
TO-263-5
Tube
Tape Reel
Tube
Tape Reel
Tube
Note: xx: Output Voltage, refer to Marking Information.
P1596L-xx-G04-K
(1)Packing Type
(1) K: Bulk, R: Tape Reel, T:Tube
(2)Package Type
(3)Output Voltage Code
(4)Lead Plating
(2) G04: SIP-4, TA5: TO-220-5, TB5: TO-220B-5
TN5: TO-252-5, TQ5: TO-263-5
(3) xx: refer to Marking Information
(4) L: Lead Free Plating, Blank: Pb/Sn
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Copyright © 2005 Unisonic Technologies Co., Ltd
QW-R103-027,A
P1596
LINEAR INTEGRATED CIRCUIT
ꢀ
PIN DESCRIPTIONS
FOR 5-PIN
FOR 4-PIN
PIN NAME
VIN
DESCRITION
1
2
3
4
5
1
2
4
3
-
Operating voltage input
Output
GND
Switching output
Circuit Ground
FB (Feedback) Output voltage feedback control
SD (Shutdown) ON/OFF shutdown
ꢀ
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
UTC
P1596
SIP-4
Voltage Code
Date Code
33:3.3V
50:5.0V
12:12V
AD:ADJ
1
2
3
4
UTC
P1596
TO-220-5
TO-220B-5
TO-252-5
TO-263-5
Voltage Code
SYMBOL
Date Code
1 2 3 4 5
ꢀ
THERMAL DATA
PARAMETER
RATINGS
UNIT
SIP-4
30
3
3
8
4
TO-220B
TO-220-5
TO-252-5
TO-263-5
θJC
℃/W
Thermal Resistance Junction to Case
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P1596
LINEAR INTEGRATED CIRCUIT
ꢀ
BLOCK DIAGRAM
ON / OFF
VIN
220mV
220mV
Current
Source
bias
1.235V
Reference
2.5V
Regulator
Start
up
+
Comp
-
-
Comp
+
Frequency
Compe-
nsation
+
Amp
-
1.5A
Switch
Comp
+
-
Pre-driver
FB
OUTPUT
GND
200kHz
OSC.
Thermal
Shutdown
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P1596
LINEAR INTEGRATED CIRCUIT
ꢀ
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCC
RATINGS
24
UNIT
V
Maximum Supply Voltage
Operating Voltage
VOPR
VON/OFF
VFB
4.5 ~ 22
-0.3 ~ +18
-0.3 ~ +18
-1
V
ON/OFF Pin Input Voltage
Feedback Pin Voltage
V
V
Output Voltage to Ground (Steady State)
Power Dissipation
VOUT
PD
V
Internally limited
+125
W
℃
℃
℃
Maximum Junction Temperature
Temperature Range
TJ
TOPR
TSTG
-20 ~ +85
-40 ~ +150
Storage Temperature Range
Note: 1.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.
2.The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range
and assured by design from -20℃~+85℃, characteristic and correlation with static process control.
ꢀ
ELECTRICAL CHARACTERISTICS
(TJ=25℃, VIN=12V for 3.3V, 5V, ADJ and VIN=18V for the 12V, ILOAD=0.5A, unless otherwise specified.)
PARAMETER
SYMBOL
VOUT
TEST CONDITIONS
MIN
3.168
4.8
TYP
3.3
MAX UNIT
4.75V≦VIN≦30V, 0.2A≦ILOAD≦1.5A
7V≦VIN≦30V, 0.2A≦ILOAD≦1.5A
15V≦VIN≦30V, 0.2A≦ILOAD≦1.5A
3.3V
5.0V
12V
3.432
5.2
V
V
Output Voltage
5.0
11.52 12.0 12.48
V
3.3V
5.0V
12V
VIN=12V, ILOAD=1.5A
VIN=12V, ILOAD=1.5A
VIN=18V, ILOAD=1.5A
73
80
90
%
%
%
η
Efficiency
UTC P1596-ADJ
4.75V≦VIN≦30V, 0.2A≦ILOAD≦1.5A
VOUT Programmed for 3V
V
Output Feedback
VFB
1.193 1.23 1.267
78
η
Efficiency
VIN=12V, ILOAD=1.5A
%
ALL OUTPUT VOLTAGE
Feedback Bias Current
Oscillator Frequency
IBIAS
fOSC
Adjustable Version Only, VFB=1.3V
-10
-50
nA
127
150
173
KHz
IOUT=2A, No outside circuit
VFB=0V force driver on
VFB=0V force driver on
Saturation Voltage
VSAT
DC
1.25
1.4
V
Max
Min
100
0
Duty Cycle
%
VFB=12V force driver off
Peak Current, No outside circuit
VFB=0V force driver on
Current Limit
LLIMIT
2
A
Output=0V, No outside circuit
ILEAK VFB=12V force driver off
Output=-1V, VIN=12V
-200
µA
Output Leakage Current
-5
5
mA
mA
µA
Quiescent Current
IQ
VFB=12V force driver off
ON/OFF Pin=5V, VIN=22V
10
Standby Quiescent Current
ISTBY
70
150
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P1596
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL APPLICATION
For Adjustable Output Voltage Version
CFF
Locate The Programming Resistors Near
The Feedback Pin Using Short Leads
R1
1k
R2
Keep Feedback Wiring Away
From Inductor Flux
Feedback
4
OUTPUT
+VIN
Regulated Output
+
UTC P1596-ADJ
L1
L
O
A
D
1
2
Unregulated
DC Input
+
ON/OFF
5
3
+
GND
COUT
D1
CIN
Heavy Lines Must be Kept Short and Use
Ground Plane Construction for Best Results
VOUT×(R1/(R1+ R2))=VREF
VOUT = VREF(1+ R2/R1)
Where VREF=1.23V
R2=R1((VOUT / VREF)-1)
For Fixed Output Voltage Versions
R1
R2
FB
12V
DC Input
3.3V/1.5A
Output Load
3
L1
OUTPUT
UTC
P1596 -XX
2
1
VIN
Inductor
4
+
+
GND
CIN
Capacitor
Co
Capacitor
D1
Schottky Diode
VOUT=VFB×(1+R1/R2)
VFB=1.23V
R2=1K~3K
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P1596
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS
Output Voltage v.s. Temperature
(VIN=12V, IO=1.5A)
Efficiency v.s. Temperature
(VIN=12V, VOUT=3.3V, IO=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
-20
0
20 40 60 80 100 110 120 130
-50 -30 -10 10 30 50 70 90 110 130
Temperature, Ta (℃)
Temperature, Ta (℃)
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
1.2
1.1
1
1.5A
3
2.5
2
1A
0.5A
0.9
0.8
0.7
-30
0
50 75 100 125
90
-40
-25
25
-50
-30 -10
10
30
50
70
Temperature, Ta (℃)
Temperature, Ta (℃)
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
-10
30
Temperature, Ta (℃)
130 150
70 90 110 130
-30
10
50
-50 -30 -10 10 30 50 70 90 110
Temperature, Ta (℃)
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P1596
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS (cont.)
Frequency v.s. Temperature
(VCC=12V, IO=500mA, VOUT=5V)
Feedback Current v.s. Temperature
(VCC=12V, VOUT=5V, VFB=1.3V)
170
165
160
155
150
145
140
10
0
-10
-20
-30
-40
-50
130 150
130 150
-50 -30 -10 10 30 50 70 90 110
-50 -30 -10 10 30 50 70 90 110
Temperature, Ta (℃)
Temperature, Ta (℃)
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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