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參數(shù)資料
| 型號： | PT6708N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
| 封裝： | SIP-17 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 372K |
| 代理商： | PT6708N |
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Standard Application
For STBY* pin
open = output enabled
ground = output disabled.
Pin-Out Information
Pin Function
1Vout Adjust
2
STBY*
3
+12V Bias Input
4Vin
5Vin
6Vin
7
Remote Sense Gnd (4)
8
GND
9
GND
Pin Function
10
GND
11
GND
12
GND
13
Vout
14Vout
15
Vout
16
Vout
17
Remote Sense Vout
PT6705 Series
The PT6705 is a series of low-cost,
high-performance, 13 Amp Integrated
Switching Regulators (ISRs) housed in a
unique, space-saving 17-pin SIP package.
The PT6705 will operate off either a 5V
or 3.3V input bus to provide a low-voltage
power source for the industry’s latest high-
speed, low-voltage Ps, and bus drivers.
The PT6705 incorporates internal
short circuit protection, and requires a
+12V/50mA bias input for operation.
+3.3V/5V input (+12V Bias)
Adjustable Output Voltage
90% Efficiency
Differential Remote Sense
17-pin Space-Saving Package
Solderable Copper Case
Short Circuit Protection
Cin = Required 1000F electrolytic
Cout= Required 330F electrolytic
L1 = Optional 1H input choke
SLTS099
(Revised 6/30/2000)
PT6705
4 - 6
8 - 12
13 - 16
3
1H
C
OUT
+
C
IN
+
7
17
L1
LOAD
REMOTE SENSE (+)
REMOTE
SENSE (-)
21
GND
V
OUT
Vout Adjust
V
IN
GND
+12V BIAS
STBY*
13 Amp 5V/3.3V Input Adjustable
Integrated Switching Regulator
New Space-Saving
Package
Specifications
Characteristics
PT6705 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = +60°C, 200 LFM, pkg N
0.1 (1)
—
13.0
A
Ta = +25°C, natural convection
0.1 (1)
—
13.0
Input Voltage Range
Vin
0.1A
≤Io ≤13A
PT6705/6
4.5
—
5.5
V
PT6707/8
3.1
—
5.5
External Bias Voltage Range
Vb
0.1A
≤Io ≤13A, –40°C ≤Ta ≤+85°C
11.5
12.0
13.0
V
External Bias Current
Ib
0.1A
≤Io ≤13A, –40°C ≤Ta ≤+85°C
—
50
mA
Output Voltage Tolerance
Vo
Vin = +5V, Vb = +12V, Io =13A
Vo-0.03
—
Vo+0.03
V
-40°C
≤ Ta ≤ +85°C
Short-Circuit Threshold
Isc
Vin = +5V, Vb = +12V
—
18
30
A
Line Regulation
Regline
4.5V
≤Vin ≤ 5.5V, Vb = +12V, Io =13A
—
±5
—
mV
Load Regulation
Regload
Vin = +5V, Vb = +12V, 0.1 ≤Io ≤13A
—
±10
—
mV
Vo Ripple/Noise
Vn
Vin = +5V, Vb = +12V, Io =13A
—
35
—
mV
Transient Response
ttr
Io step between 6.5A and 13A
—
50
—
Sec
with Cout = 330F
Vos
Vo over/undershoot
—
100
—
mV
Efficiency
η
Vin = +5V, Io = 9A, Vb =+12V
Vo = 3.3V
—
91
—
Vo = 2.5V
—
88
—
%
Vo = 1.8V
—
85
—
Vo = 1.5V
—
83
—
Switching Frequency
o
4.5V
≤Vin ≤5.5V, Vb = +12V
300
350
400
kHz
0.1A
≤ Io ≤ 13A
Absolute Maximum
Ta
Over Vin Range
-40 (2)
—
+85 (3)
°C
Operating Temperature Range
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
—
500
—
G
1msec, Half sine, mounted to a fixture
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
—
15
—
G
20-2000 Hz, Soldered in a PC board
Weight
—
26
—
grams
Notes:
(1) The ISR-will operate down to no load with reduced specifications.
(2) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon capacitors.
(3) See Safe Operating Area curves, or contact the factory for appropriate derating.
(4) If the remote sense ground is not used, pin 7 must be connected to pin 8 for optimum output voltage accuracy.
Patent pending on package assembly
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| PT6705N | 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
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| PT6707A | 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
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| PT6707C | 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
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