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參數(shù)資料
| 型號： | PT6525P |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 8 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA14 |
| 封裝： | VERTICAL MOUNT PACKAGE-14 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 211K |
| 代理商： | PT6525P |
For technical support and more information, see inside back cover or visit www.ti.com
PT6520 Series
8-A 5-V/3.3-V Input Adjustable ISR
with Short-Circuit protection
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =330F, Cout =330F, and Io =Iomax)
PT6520 SERIES
Characteristic
Symbol
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0.1 (1)
—
8.0
A
Input Voltage Range
Vin
Over Io Range
Vo =3.3V
4.5
—
5.5
VDC
Vo≤2.5V
3.1
—
5.5
Set Point Voltage Tolerance
Vo tol
—
±1
±1.5
%Vo
Temperature Variation
Regtemp
–40°
≤Ta≤ +85°C, Io =Iomin
—
±0.5
—
%Vo
Line Regulation
Regline
Over Vin range
—
±5
±10
mV
Load Regulation
Regload
Over Io range
—
±5
±10
mV
Total Output Voltage Variation
Votot
Includes set-point, line, load,
—
±2±3%Vo
–40°
≤Ta ≤ +85°C
Efficiency
η
Io =3.0A
Vo =3.3V
—
92
—
Vo =2.5V
—
88
—
Vo =2.1V
—
85
—
%
Vo =1.8V
—
82
—
Vo =1.5V
—
80
—
Vo =1.2V
—
75
—
Io =8.0A
Vo =3.3V
—
89
—
Vo =2.5V
—
85
—
Vo =2.1V
—
82
—
%
Vo =1.8V
—
78
—
Vo =1.5V
—
75
—
Vo =1.2V
—
71
—
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
—
35
—
mVpp
Transient Response
ttr
1A/s load step, 50% to 100% Iomax
—
50
—
s
Vtr
Vo over/undershoot
—
±70
—
mV
Short Circuit Threshold
Isc threshold
—
12
22.5
A
Switching Frequency
s
Over Vin and Io range
300
350
400
kHz
Remote On/Off (Pin 1)
Referenced to –Vin (pin 7)
Input High Voltage
VIH
—
Open (2)
V
Input Low Voltage
VIL
–0.1
—
+0.4
Input Low Current
IIL
—
–0.5
–
mA
Standby Input Current
Iin standby
pins 3 & 7 connected
—
15
25
mA
External Output Capacitance
Cout
See application schematic
330
—
5,000
F
External Input Capacitance
Cin
See application schematic
330
—
F
Operating Temperature Range
Ta
Over Vin range
-40
—
+85 (3)
°C
Storage Temperature
Ts
—
-40
—
+125
°C
Reliability
MTBF
Per Bellcore TR-332
6.3
—
106 Hrs
50% stress, Ta =40°C, ground benign
Mechanical Shock
—
Per Mil-Std-883D, method 2002.3,
—
500
—
G’s
1ms, half-sine, mounted to a fixture
Mechanical Vibration
—
Suffixes P, D, & E—
7.5
—
G’s
Mil-Std-883D, 20-2000Hz
Suffixes L & M
—
TBD (4)
—
Weight
—
Suffixes P, D, & E—
12.5
—
Suffixes R, G & B
—
16.5
—
grams
Suffixes L & M
—
15.25
—
Suffixes Q & F
—
22
—
Flammability
—
Materials meet UL 94V-0
Notes:
(1) The ISR will operate at no load with reduced specifications.
(2) The STBY* control (pin 3) has an internal pull-up and if it is left open circuit the module will operate when input power is applied. The open-circuit
voltage is typically 12.6V, and maybe as high as 15V. Refer to the application notes for other interface considerations.
(3) See Safe Operating Area curves or contact the factory for the appropriate derating.
(4) The tab pins on the 16-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing.
Input/Output Capacitors: The PT6520 series requires a 330F capacitor at both the input and output for proper operation in all applications. In addition, the input
capacitance (Cin) must be rated for a minimum of 1.2Arms ripple current rating. For transient or dynamic load applications, additional output capacitance (Cout) may be
necessary. The maximum allowable output capacitance is 5,000F. For more information consult the related application note on capacitor recommendations.
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