TI PT6307

For assistance or to order, call
(800) 531-5782
PT6305
Series
3 AMP HIGH-PERFORMANCE
ADJUSTABLE ISR
The PT6305N is Power Trends’
new high performance +5V to +3.3V, 3
Amp, 12-Pin SIP (Single In-linePackage) Integrated Switching
Regulator (ISR). This high-performance ISR allows easy integration of
low-power 3.3V logic IC’s into existing
5V systems without redesigning the
central power supply. Only one external
capacitor is required for proper
operation. The PT6306,7,8 can be used
to power high-speed data buses (+2.1V),
or the new GTL (+1.2V) logic buses.
Pin-Out Information
Ordering Information
• Single-Device 5V to 3V Power
• 85% Efficiency
• Small SIP Footprint:
0.36" x 2.00” x 0.60"(H)
• Wide Input Voltage Range:
+4.5V to +9.0V
• Internal Short Circuit Protection
• Over-Temperature Protection
Standard Application
VO Adjust
12
2,3,4
VIN
(+)
9,10,11
VOUT
(+)
PT6305,6,7,8
C1
C2
Pin No. Function
1
N/C
2
Vin
3
Vin
4
Vin
5
GND
6
GND
Pin No. Function
7
GND
8
GND
9
Vout
10
Vout
11
Vout
12
Adjust
(See page 40.)
5,6,7,8
COM
COM
C1 = Optional electrolytic (100µF)
C2 = Required 100µF electrolytic (No tantalum)
See capacitor application note on page 43.
PT6305n
PT6306n
PT6307n
PT6308n
= +3.3 Volts
= +1.8 Volts
= +2.1 Volts
= +1.2 Volts
(For dimensions, see page 66.)
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Heat Tab Configuration
None
Side
N
A
C
Horizontal Through-Hole
Horizontal Surface Mount
1
12
R
G
B
(See Thermal Application Notes on page 44 for heat tab
application data.)
Specifications
PT6305 SERIES
Characteristics
(TA=25˚C unless noted)
Output Current
Symbols
Io
Conditions
4.5 ≤ Vin ≤ Vin MAX
Min
0.3
Typ
—
Max
3.0**
Current Limit
Icl
Vin = +5V
—
3.6
5.0
ADC
Short Circuit Current
Isc
Vin = +5V
—
5.0
—
Apk
Input Voltage Range
Vin
0.3A ≤ Io ≤ 3.0A
PT6305N
PT6306N
PT6307N
PT6308N
4.5
4.5
4.5
4.5
—
—
—
—
9
9
9
6.0
VDC
VDC
VDC
VDC
Static Voltage Tolerance
Vo
Vin = +5V, Io = 3.0A
0°C ≤ Ta ≤ +70°C
PT6305N
PT6306N
PT6307N
PT6308N
3.2
1.7
2.0
1.1
3.3
1.8
2.1
1.2
3.4
1.9
2.2
1.3
VDC
VDC
VDC
VDC
Line Regulation
Regline
4.5V ≤ Vin ≤ 5.5V, Io = 3.0A
—
±25
±50
mV
Load Regulation
Regload
Vin = +5V, 0.3 ≤ Io ≤ 3.0A
—
±25
±50
mV
Vo Ripple/Noise pk-pk
Vn
Vin = 5V, Io = 3.0A
—
66
—
mV
Transient Response
with C2 = 100µF
ttr
Vos
Io step between 1.5A and 3.0A
Vo over/undershoot
—
—
200
200
—
—
µSec
mV
Vin = +5V, Io = 1.5A
PT6305N
PT6306N
PT6307N
PT6308N
—
—
—
—
85
74
77
63
—
—
—
—
%
%
%
%
Vin = +5V, Io = 3.0A
PT6305N
PT6306N
PT6307N
PT6308N
—
—
—
—
80
68
72
57
—
—
—
—
%
%
%
%
Efficiency
η
Units
ADC
Switching Frequency
ƒo
4.5 ≤ Vin ≤ Vin MAX
0.3A ≤ Io ≤ 3.0A
500
650
800
KHz
Operating Temperature
Ta
0
—
+70*
°C
Thermal Resistance
θja
Free Air Convection (40-60 LFM)
Over Vin and Io Ranges
Free Air Convection (40-60 LFM)
—
25
—
°C/W
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3 Condition A, 1 msec, Half Sine,
mounted to a fixture
—
—
500
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2 Condition A, 20-2000 Hz
—
—
15
G’s
Weight
—
—
—
11.2
—
grams
Relative Humidity
—
Non-condensing
0
—
95
%
*See Thermal Derating chart. **The PT6305 Series can be easily paralleled to provide output current in multiples of 3 amps. Please contact a Power Trends’ Application Engineer for the
appropriate application note. Note: The PT6305 Series requires a 100µF electrolytic capacitor for proper operation in all applications.
24
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902
For assistance or to order, call
C H A R A C T E R I S T I C
(800) 531-5782
D A T A
PT6305, 3.3 VDC
PT6307, 2.1 VDC
PT6308, 1.2 VDC
(See Note 1)
(See Note 1)
(See Note 1)
Efficiency vs Output Current
100
90
90
90
5.0V
70
5.5V
8.0V
60
Efficiency - %
80
4.5V
5.0V
70
5.5V
60
8.0V
9.0V
9.0V
50
50
0
0.5
1
1.5
2
Iout-(Amps)
2.5
0
3
Ripple vs Output Current
0.5
1
1.5
2
Iout-(Amps)
2.5
5.5V
40
5.0V
Vin
60
8.0V
2
2.5
40
5.0V
0
0.5
1
20
2
2.5
0
3
0.5
1
4.5
4.25
4.25
4
3.75
3.7
3.5
2
2.5
3
0.5
1
1.5
2
2.5
0
3
0.5
1
70°C
1.5
2
Thermal Derating (Ta)
(See Note 3)
85°C
3
85°C
2.5
95°C
90°C
1.5
95°C
1
2
Iout-(Amps)
Iout-(Amps)
1.5
1
0.5
0
0
6.5
8.5
10.5
6.5
8.5
10.5
4.5
2.5
Vin
Power Dissipation vs Output Current
1.5
5.5V
1
5.0V
9.0V
2
Pd-(Watts)
8.0V
8.0V
1.5
5.5V
5.0V
1
4.5V
0.5
4.5V
0.5
0
Iout-(Amps)
2
2.5
3
2
6.0V
5.5V
1.5
5.0V
1
4.5V
0.5
0
0
1.5
2.5
Vin
Vin
9.0V
2
6
3
3
2.5
5.5
Vin-(Volts)
Power Dissipation vs Output Current
3
1
5
Vin-(Volts)
Power Dissipation vs Output Current
0.5
1
0
4.5
Vin-(Volts)
0
1.5
0.5
Pd-(Watts)
Iout-(Amps)
2
0.5
Pd-(Watts)
90°C
2.5
85°C
2
4.5
3
(See Note 3)
3
90°C
2.5
2.5
Iout-(Amps)
Thermal Derating (Ta)
(See Note 3)
(See Note 2)
4
Iout-(Amps)
3
3
3.5
0
Iout-(Amps)
Thermal Derating (Ta)
2.5
3.75
3.5
1.5
2
Minimum Input Voltage
(See Note 2)
Vin-(Volts)
3.9
1.5
Iout-(Amps)
4.5
Vin-(Volts)
Vin-(Volts)
1.5
Minimum Input Voltage
(See Note 2)
4.1
1
5.0V
Iout-(Amps)
4.3
0.5
5.5V
40
0
3
4.5
0
6.0V
60
4.5V
4.5V
Iout-(Amps)
Minimum Input Voltage
3
Vin
0
1.5
2.5
80
5.5V
0
1
2
Ripple vs Output Current
20
0.5
1.5
100
4.5V
20
1
9.0V
Ripple-(mV)
Ripple-(mV)
8.0V
0.5
Iout-(Amps)
9.0V
60
6.0V
0
80
Vin
0
5.5V
Ripple vs Output Current
80
5.0V
60
3
100
100
4.5V
70
40
40
40
Vin
80
50
Ripple (mv)
Efficiency - %
4.5V
Efficiency - %
Vin
Vin
80
0
0.5
1
1.5
Iout-(Amps)
2
2.5
3
0
0.5
1
1.5
2
2.5
3
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.
Note 2: Minimum Vin data is typical and is not guaranteed. The data corresponds to a 2% output voltage drop.
Note 3: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM with no optional heat tab soldered in a printed circuit board. (See Thermal Application Notes).
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902
25
DATA SHEETS
Efficiency vs Output Current
100
100
High-Performance ISRs
Efficiency vs Output Current
For assistance or to order, call
(800) 531-5782
Product families using
this package style:
PT6400
PT5060
Package Style 300
Suffix A, C, D, E, N, P
PACKAGE INFORMATION AND DIMENSIONS
Revised 2/11/2000
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.ti.com/powertrends