PT6503H [TI]
SWITCHING REGULATOR, 725kHz SWITCHING FREQ-MAX, SFM14;
| 型号： | PT6503H |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | SWITCHING REGULATOR, 725kHz SWITCHING FREQ-MAX, SFM14 |
| 文件： | 总7页 (文件大小：292K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
For assistance or to order, call (800) 531-5782
Revised 7/15/98
P T 6 5 0 0 S e r i e s
Application Notes
Mechanical Outline
Product Selector Guide
8 AMP ADJUSTABLE ISR
WITH SHORT-CIRCUIT PROTECTION
• 8A Single Device Power
• Up to 90% efficiency (PT6501)
• Small SIP Footprint
mance ISR allows easy integration of
high-speed, low-voltage Pentium pro-
cessors and their support logic into
existing 3.3V or 5V systems without
redesigning the central power supply.
The high-performance PT6502 solves
the problem of providing the low ter-
minating voltages required by BTL/
Futurebus+, CTT, HP, and GTL Buses
from existing 3.3V or 5V power rails
without redesigning the central power
supply.
• Standby Function
• Internal Short Circuit Protection
• Over-Temperature Protection
• Adjustable Output Voltage
The PT6500 series is Power Trends’
new high performance +3.1 to 6V
input, 8 Amp, 14-Pin SIP (Single In-
line-Package) Integrated Switching
Regulator (ISR). This high-perfor-
Pin-Out Information Ordering Information
PT Series Suffix
Case/Pin
Configuration
(PT1234X)
Heat Tab Configuration
None
Pin Function
PT6501¨ = 3.3 Volts
PT6502¨ = 1.5 Volts
PT6503¨ = 2.5 Volts
PT6504¨ = 3.6 Volts
PT6505¨ = 1.2 Volts
PT6506¨ = 1.8 Volts
PT6507¨ = 1.3 Volts
PT6508¨ = 1.7 Volts
Side
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Remote Sense
Do not connect
STBY*-Standby
Vin
Vin
Vin
†
Standard Application
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
N
A
C
R
G
B
VO Adjust
14
4,5,6
11,12,13
VIN
VOUT
(+)
(+)
Remote Sense
1
†
†
†
†
PT6501,2,3
C1
C2
3
Q1
7,8,9,10
INH
GND
GND
GND
GND
Vout
COM
COM
†3.3V Input Bus Capable
Pkg Style 400
C1 = Required 330µF electrolytic
C2 = Required 330µF electrolytic
Vout
Vout
Vout Adjust
Specifications
PT6500 SERIES
Characteristics
(Ta=25°C unless noted)
Symbols
Conditions
Min
0.1*
—
Typ
Max
8.0
Units
Output Current
Io
Over Vin range
Vin=+5V
—
A
Current Limit
Icl
13.0
15.0
20.0
—
A
Short Circuit Current
Input Voltage Range
Isc
Vin
Vin=+5V
—
Apk
0.1≤ Io≤ 8.0A
Vo=2.5V and 3.3V
Vo=1.5V, 1.2V, 1.3V
Vo=3.6V
4.5
3.1
4.8
—
—
—
6
6
6
V
V
V
Output Voltage Tolerance
Output Adjust Range
∆Vo
Vin = +5V, Io = 8.0A
Ta = 0 to +70°C
Vo-0.1
—
Vo+0.1
V
Vo
Vnom = 3.3V
Vadj = (PT6501)
Vadj = (PT6502)
Vadj = (PT6503)
Vadj = (PT6504)
2.25
1.27
1.80
2.50
—
—
—
4.20
2.65
3.50
4.30
Vinmin=3.1V
or Vo+1.2V
(whichever
is greater)
V
nom = 1.5V
Vnom = 2.5V
Pin 14 to Vo or GND
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
4.5V ≤ Vin ≤ 6.0V, Io = 8.0A (PT6501/4)
—
—
±7
±3
±7
±17
±8
3.1V ≤ Vin ≤ 6.0V, Io = 8.0A
4.5V ≤ Vin ≤ 6.0V, Io = 8.0A
(PT6502)
(PT6503)
mV
±13
0.1 ≤ Io ≤ 8.0A, Vin = +5V
(PT6501/4)
(PT6502)
(PT6503)
—
—
±17
±12
±13
±33
±23
±25
mV
Vin = +5V, Io = 8.0 Amp
—
50
—
mVpp
ttr
Vos
Transient Response
with Co = 330µF
Io step from 4A to 8.0A
Vo over/undershoot
—
—
100
150
—
—
µsec
mV
Efficiency
η
Vin = +5V, Io = 3.0A
(PT6501/6504)
(PT6502)
—
—
—
—
—
—
90
76
85
83
68
76
—
—
—
—
—
—
%
%
%
%
%
%
(PT6503)
Vin = +5V, Io = 8.0A
(PT6501/6504)
(PT6502)
(PT6503)
* ISR will operate down to no load with reduced specifications.
Note: The PT6500 Series requires a 330µF electrolytic or tantalum input and output capacitor for proper operation in all applications.
See PT6000/7000 Series Capacitor application note.
2
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call (800) 531-5782
P T 6 5 0 0 S e r i e s
Specifications (continued)
PT65000 SERIES
Characteristics
(Ta=25°C unless noted)
Symbols
ƒo
Conditions
Min
475
0
Typ
600
—
Max
725
+85
Units
KHz
°C
Switching Frequency
Over Vin and Io ranges
Absolute Maximum
Operating Temperature Range
Ta
Recommended Operating
Temperature Range
Ta
θja
Ts
Vin = +5V, Io = 6.0A
0
—
15
+70**
—
°C
Free Air Convection (40-60LFM)
Thermal Resistance
Free Air Convection (40-60LFM)
—
°C/W
Storage Temperature
Mechanical Shock
—
-40
—
—
+125
—
°C
Per Mil-STD-883D, Method 2002.3,
1msec, half sine, fixture mounted
500
G’s
Mechanical Vibration
—
—
7.5
23
—
—
G’s
Weight
grams
** See Thermal Derating charts.
Note: The PT6500 Series requires a 330µF electrolytic or tantalum input and output capacitor for proper operation in all applications.
C H A R A C T E R I S T I C
D A T A
PT6501, 3.3 VDC, Vin=5.0V
PT6502, 1.5 VDC, Vin=5.0V
PT6503, 2.5 VDC, Vin=5.0V
(See Note 1)
(See Note 1)
(See Note 1)
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
100
90
80
70
60
50
40
100
90
100
90
80
70
60
50
40
Vin
4.0V
Vin
3.1V
3.5V
4.0V
4.5V
5.0V
6.0V
Vin
4.5V
80
70
60
50
40
4.5V
5.0V
5.5V
6.0V
5.0V
5.5V
6.0V
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Ripple vs Output Current
Ripple vs Output Current
Ripple vs Output Current
60
50
40
30
20
10
0
35
30
25
20
15
10
5
50
40
30
20
10
0
Vin
6.0V
Vin
6.0V
Vin
3.1V
3.5V
4.0V
4.5V
5.0V
6.0V
5.5V
5.0V
4.5V
5.5V
5.0V
4.5V
4.0V
0
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
7
6
6
7
6
5
4
3
2
1
0
Vin
5
4
3
2
1
0
Vin
Vin
6.0V
5.0V
4.5V
4.0V
3.5V
3.1V
5
4
3
2
1
0
6.0V
5.5V
5.0V
4.5V
4.0V
6.0V
5.5V
5.0V
4.5V
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
3
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call (800) 531-5782
P T 6 5 0 0 T H E R M A L D A T A
THERMAL DERATING CURVES
Air Flow (LFM)
60
200
300
PT6501 (See Note 1)
No Heat Tab
Thermal Derating (Ta)
8
(See Note 2)
35˚C
50˚C
Thermal Derating (Ta)
8
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
25˚C
8
60˚C
35˚C
70˚C
50˚C
7
7
7
70˚C
60˚C
85˚C
70˚C
6
6
6
85˚C
85˚C
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
Vin-(Volts)
5.5
5.75
6
Vin-(Volts)
Vin-(Volts)
Heat Tab
Thermal Derating (Ta)
(See Note 2)
50˚C
60˚C
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
8
(See Note 2)
70˚C
70˚C
8
8
7
6
5
4
3
2
1
0
85˚C
85˚C
70˚C
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
85˚C
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
5.5
5.75
6
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
PT6502 (See Note 1)
No Heat Tab
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
8
(See Note 2)
Thermal Derating (Ta)
8
(See Note 2)
50˚C
8
70˚C
50˚C
60˚C
60˚C
70˚C
85˚C
7
7
7
70˚C
85˚C
6
5
4
3
2
1
0
6
6
5
4
85˚C
5
4
3
2
1
0
3
2
1
0
3
3.5
4
4.5
Vin-(Volts)
5
5.5
6
3
3.5
4
4.5
Vin-(Volts)
5
5.5
6
3
3.5
4
4.5
Vin-(Volts)
5
5.5
6
Heat Tab
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
8
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
50˚C
8
70˚C
8
7
6
5
4
3
2
1
0
70˚C
85˚C
60˚C
85˚C
70˚C
7
7
6
5
4
3
2
1
0
85˚C
6
5
4
3
2
1
0
3
3.5
4
4.5
Vin-(Volts)
5
5.5
6
3
3.5
4
4.5
Vin-(Volts)
5
5.5
6
3
3.5
4
4.5
Vin-(Volts)
5
5.5
6
Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Note 2: Thermal derating graphs are developed in different air flow rates as indicated on each graph, with or without the heat tab, soldered in a printed circuit board. (See Thermal Application Notes.)
4
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call (800) 531-5782
P T 6 5 0 0 T H E R M A L D A T A
THERMAL DERATING CURVES
Air Flow (LFM)
60
200
300
PT6503 (See Note 1)
No Heat Tab
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
70˚C
70˚C
8
7
8
7
8
7
6
5
50˚C
60˚C
85˚C
85˚C
70˚C
85˚C
6
5
6
5
4
3
4
3
2
1
0
4
3
2
2
1
0
1
0
4.5
5
5.5
6
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
5.5
5.75
6
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
Heat Tab
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
70˚C
70˚C
85˚C
50˚C
60˚C
8
7
8
7
6
5
8
7
70˚C
85˚C
6
5
85˚C
6
5
4
3
2
1
0
4
3
2
4
3
2
1
0
1
0
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
5.5
5.75
6
4.5
4.75
5
5.25
5.5
5.75
6
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Note 2: Thermal derating graphs are developed in different air flow rates as indicated on each graph, with or without the heat tab, soldered in a printed circuit board. (See Thermal Application Notes.)
5
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call (800) 531-5782
PT6500/PT6600 Series
A p p l i c a t i o n
N o t e s
More Application Notes
Figure 1
Adjusting the Output Voltage of the PT6500 and
PT6600 5V Bus Converters
1
The output voltage of the Power Trends PT6500/PT6600
Series ISRs may be adjusted higher or lower than the factory
trimmed pre-set voltage with the addition of a single external
resistor. Table 1 accordingly gives the allowable adjustment
range for each model in the series as Va (min) and Va (max).
Vo(sense)
4,5,6
11,12,13
Vo
Vin
PT6500/6600
Vo
Vin
STBY
G N D
Vo(adj)
3
7,8,9,10 14
(R1)
L
O
A
D
Adj Down
+
+
C in
330
C out
330
Adjust Up:
An increase in the output voltage is obtained by
µ
F
µF
adding a resistor R2, between pin 14 (Vo adjust) and pins 7-10
(GND).
R2
Adjust Up
Adjust Down: Add a resistor (R1), between pin 14 (Vo adjust)
and pins 11-13 (Vout).
COM
COM
The values of (R1) [adjust down], and R2 [adjust up], can
also be calculated using the following formulae.
Refer to Figure 1 and Table 2 for both the placement and value
of the required resistor, either (R1) or R2 as appropriate.
Notes:
Ro (Va – 1.0)
(Vo – Va)
(R1)
R2
=
=
– Rs kΩ
1. Use only a single 1% resistor in either the (R1) or R2 loca-
tion. Place the resistor as close to the ISR as possible.
2. Never connect capacitors from Vo adjust to either GND,
Ro
Va - Vo
Vout, or the Remote Sense pin. Any capacitance added to
– Rs
kΩ
the Vo adjust pin will affect the stability of the ISR.
3. If the Remote Sense feature is being used, connecting the
resistor (R1) between pin 14 (Vo adjust) and pin 1 (Remote
Sense) can benefit load regulation.
Where: Vo = Original output voltage
Va = Adjusted output voltage
Ro = The resistance value in Table 1
Rs = The series resistance from Table 1
4. The minimum input voltage required by the part is
Vout + 1.2 or 3.1V, whichever is higher.
Table 1
PT6500/6600 ADJUSTMENT AND FORMULA PARAMETERS
Series Pt #
PT6505
PT6507
PT6502
PT6508
PT6608
PT6506
PT6606
PT6503
PT6603
PT6501
PT6601
PT6504
PT6604
PT6605
PT6607
PT6602
V (nom)
1.2
1.3
1.5
1.7
1.8
2.5
3.3
2.25
4.2
3.6
2.5
o
V (min)
a
1.14
2.35
2.49
2.0
1.19
2.45
2.49
2.0
1.27
2.65
2.49
2.0
1.36
2.85
2.49
2.0
1.4
1.8
V (max)
a
2.95
2.49
2.0
3.5
4.3
R (kΩ)
o
4.99
4.22
12.1
12.1
10.0
12.1
R (kΩ)
s
3
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call (800) 531-5782
PT6500/PT6600 Series
A p p l i c a t i o n
N o t e s
Table 2
PT6500/PT6600 ADJUSTMENT RESISTOR VALUES
Series Pt #
PT6505
PT6605
1.2
PT6507
PT6607
1.3
PT6502
PT6602
1.5
PT6508
PT6608
1.7
PT6506
PT6606
1.8
PT6503
PT6603
2.5
PT6501
PT6504
PT6604
3.6
PT6601
3.3
Vo (nom)
Va (req’d)
1.15
1.2
(5.5)kΩ
(3.0)kΩ
1.25
1.3
47.8kΩ
22.9kΩ
14.6kΩ
10.5kΩ
8.0kΩ
6.3kΩ
5.1kΩ
4.2kΩ
3.5kΩ
3.0kΩ
2.5kΩ
2.2kΩ
1.8kΩ
1.6kΩ
1.3kΩ
1.1kΩ
0.9kΩ
0.8kΩ
0.6kΩ
0.5kΩ
0.4kΩ
0.3kΩ
0.2kΩ
(10.5)kΩ
(1.7)kΩ
(3.8)kΩ
(8.0)kΩ
(20.4)kΩ
1.35
1.4
47.8kΩ
22.9kΩ
14.6kΩ
10.5kΩ
8.0kΩ
6.3kΩ
4.1kΩ
4.2kΩ
3.5kΩ
3.0kΩ
2.5kΩ
2.2kΩ
1.8kΩ
1.6kΩ
1.3kΩ
1.1kΩ
0.9kΩ
0.8kΩ
0.6kΩ
0.5kΩ
0.4kΩ
0.3kΩ
0.2kΩ
(1.3)kΩ
(2.5)kΩ
(4.2)kΩ
(7.1)kΩ
(12.9)kΩ
(30.4)kΩ
(0.5)kΩ
(1.2)kΩ
(2.2)kΩ
(3.5)kΩ
(5.5)kΩ
(8.8)kΩ
(15.4)kΩ
(35.4)kΩ
1.45
1.5
1.55
1.6
47.8kΩ
22.9kΩ
14.6kΩ
10.5kΩ
8.0kΩ
6.3kΩ
5.1kΩ
4.2kΩ
3.5kΩ
3.0kΩ
2.5kΩ
2.2kΩ
1.8kΩ
1.6kΩ
1.3kΩ
1.1kΩ
0.9kΩ
0.8kΩ
0.6kΩ
0.5kΩ
0.4kΩ
0.3kΩ
0.2kΩ
1.65
1.7
1.75
1.8
47.8kΩ
22.9kΩ
14.6kΩ
10.5kΩ
8.0kΩ
6.3kΩ
5.1kΩ
4.2kΩ
3.5kΩ
3.0kΩ
2.5kΩ
2.2kΩ
1.8kΩ
1.6kΩ
1.3kΩ
1.1kΩ
0.9kΩ
0.8kΩ
0.6kΩ
0.5kΩ
0.4kΩ
0.3kΩ
0.2kΩ
(1.5)kΩ
(2.3)kΩ
1.85
1.9
47.8kΩ
22.9kΩ
14.6kΩ
10.5kΩ
8.0kΩ
6.3kΩ
5.1kΩ
4.2kΩ
3.5kΩ
3.0kΩ
2.5kΩ
2.2kΩ
1.8kΩ
1.6kΩ
1.3kΩ
1.1kΩ
0.9kΩ
0.8kΩ
0.6kΩ
0.5kΩ
0.4kΩ
0.3kΩ
0.2kΩ
(3.3)kΩ
1.95
2.0
(4.4)kΩ
(5.8)kΩ
2.05
2.1
(7.4)kΩ
(9.5)kΩ
2.15
2.2
(12.2)kΩ
(15.7)kΩ
(20.7)kΩ
(28.2)kΩ
(40.7)kΩ
(65.6)kΩ
(140.0)kΩ
2.25
2.3
(2.3)kΩ
(3.6)kΩ
2.35
2.4
(5.1)kΩ
(6.7)kΩ
2.45
2.5
(8.5)kΩ
(10.6)kΩ
(12.9)kΩ
(15.6)kΩ
(18.6)kΩ
(22.2)kΩ
(26.4)kΩ
(31.5)kΩ
(37.6)kΩ
(45.4)kΩ
(55.3)kΩ
(68.6)kΩ
(115.0)kΩ
(254.0)kΩ
(1.5)kΩ
(2.7)kΩ
2.55
2.6
95.6kΩ
45.7kΩ
29.0kΩ
20.7kΩ
15.7kΩ
12.4kΩ
10.0kΩ
8.3kΩ
0.9kΩ
5.8kΩ
4.1kΩ
2.9kΩ
2.0kΩ
1.3kΩ
0.8kΩ
(3.9)kΩ
2.65
2.7
(5.3)kΩ
(6.8)kΩ
2.75
2.8
(8.5)kΩ
(10.4)kΩ
(12.6)kΩ
(15.0)kΩ
(17.9)kΩ
(21.2)kΩ
(29.9)kΩ
(42.9)kΩ
(64.6)kΩ
(108.0)kΩ
(238.0)kΩ
2.85
2.9
2.95
3.0
3.1
3.2
3.3
3.4
109.0kΩ
48.4kΩ
28.2kΩ
18.2kΩ
12.1kΩ
8.1kΩ
3.5
3.6
3.7
87.9kΩ
37.9kΩ
21.2kΩ
12.9kΩ
7.9kΩ
3.8
4/.
3.9
V
>3.8Vdc requires V >5.0Vdc !
in
out
4.0
5.2kΩ
4.1
3.0kΩ
4.2
1.3kΩ
4.6kΩ
4.3
2.2kΩ
R1 = (Red)
R2 = Black
4
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相关型号：
PT6503Q
IC 20 A SWITCHING REGULATOR, 725 kHz SWITCHING FREQ-MAX, PSMA14, SIP-14, Switching Regulator or Controller
TI
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