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參數(shù)資料
| 型號： | PT7779C |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 32 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA27 |
| 封裝： | SMD-27 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大小： | 180K |
| 代理商： | PT7779C |
TYPICAL
CHARACTERISTICS
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Ordering Information
PT7779t
t
t = 1.3 to 3.5 Volts
Programming Information
VID4=1 VID4=0
VID3 VID2 VID1 VID0
Vout
1
2.0V
1.30V
1
0
2.1V
1.35V
1
0
1
2.2V
1.40V
1
0
2.3V
1.45V
1
0
1
2.4V
1.50V
1
0
1
0
2.5V
1.55V
1
0
1
2.6V
1.60V
1
0
2.7V
1.65V
0
1
2.8V
1.70V
0
1
0
2.9V
1.75V
0
1
0
1
3.0V
1.80V
0
1
0
3.1V
1.85V
0
1
3.2V
1.90V
0
1
0
3.3V
1.95V
0
1
3.4V
2.00V
0
3.5V
2.05V
Logic 0 = Pin 12 potential (remote sense gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID3 and VID4 may not be changed while the unit is operating.
For dimensions and PC board layout, see
Package Style 1020 and 1030
+5V Input
32A Output
(64A with PT7741 Booster)
5-bit Programmable:
1.3V to 3.5V
High Efficiency
Short Circuit Protection
Differential Remote Sense
27-pin SIP Package
Features
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
PT7779—5V
32 Amp Programmable Integrated
Switching Regulator
Power Dissipation Vs Output Current
Performance Characteristics, Vin =5V
(See Note A)
Efficiency Vs Output Current
PT7779, VIN =5V, VO =3.3V
Output Ripple Vs Output Current
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
0
4
8
12
162024
2832
Iout (A)
Efficiency
-
%
1.8V
2.5V
3.3V
VOUT
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
0
4
8
12
162024
2832
Iout (A)
Pd
-
Watts
1.8V
2.5V
3.3V
VOUT
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
0.0
4.0
8.0
12.0
16.0
20.0
24.0
28.0
32.0
Iout (A)
Ambient
Temperature
(°C)
400LFM
200LFM
120LFM
Nat conv
Airflow
Note A:
Characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the regulator.
Note B:
Safe Operating Area curves represent conditions at which internal components are at or beow manufacturer’s rated operating temperatures.
Safe Operating Area Curves (See Note B)
0
10
20
30
40
50
60
70
80
0
4
8
12
16
20
24
28
32
Iout (A)
Ripple
-
mV
1.8V
2.5V
3.3V
VOUT
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