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参数资料
| 型号： | PT5802A |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 18 A SWITCHING REGULATOR, 350 kHz SWITCHING FREQ-MAX, SMA18 |
| 封装： | ROHS COMPLIANT, SIP-18 |
| 文件页数： | 6/13页 |
| 文件大小： | 217K |
| 代理商： | PT5802A |
For technical support and more information, see inside back cover or visit www.ti.com
PT5800 Series
18-A 5-V Input Adjustable
Integrated Switching Regulator
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =820F, Cout =330F, and Io =Iomax)
PT5800 SERIES
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Vin =5V
0
—
18
A
Input Voltage Range
Vin
Over Io range
4.5
—
5.5
V
Set-Point Voltage Tolerance
Vo tol
—
±2
%Vo
Temperature Variation
Regtemp
–40°C <Ta < +85°C
—
±0.5
—
%Vo
Line Regulation
Regline
Over Vin range
—
±8
—
mV
Load Regulation
Regload
Over Io range
—
±5
—
mV
Total Output Variation
Regtot
Includes set-point, line, load,
——±3
%Vo
–40°C
≤ Ta ≤ +85°C
Efficiency
η
Io =12A
PT5801 (3.3V)
—
94
—
PT5802 (2.5V)
—
92
—
PT5803 (1.8V)
—
90
—
%
PT5804 (1.5V)
—
88
—
PT5805 (1.2V)
—
86
—
PT5806 (1.0V)
—
84
—
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
—
20
—
mVpp
Transient Response
1A/s load step, 50 to 100% Iomax,
ttr
Recovery Time
—
50
—
Sec
Vtr
Vo over/undershoot
—
100
—
mV
Over-Current Threshold
ITRIP
Reset, followed by auto-recovery
—
30
—
A
Output Voltage Adjust
Vo adj
With Vo Adjust
—
±15 (1)
—
%
With Margin Up/Dn
—
±5
—
Switching Frequency
s
Over Vin and Io ranges
250
300
350
kHz
Inhibit Control (pin 2)
Referenced to GND (pins 9–13)
Input High Voltage
VIH
Vin –0.5
—
Open (2)
V
Input Low Voltage
VIL
–0.2
—
0.8
Input Low Current
IIL
Pin 2 to GND
—
–10
—
A
Standby Input Current
Iin standby
Pin 2 to GND
—
5
—
mA
External Input Capacitance
Cin
820 (3)
——F
External Output Capacitance
Cout
330 (4)
—
5,000
F
Operating Temperature Range
Ta
Over Vin range
–40 (4)
—
85 (5)
°C
Over-Temperature Protection
OTP
Measured at center of case, auto-reset
—
110
—
°C
Solder Reflow Temperature
Treflow
Surface temprature of module pins or case
—
215 (6)
°C
Storage Temperature
Ts
—
–40
—
125
°C
Reliability
MTBF
Per Bellcore TR-332
5.8
—
106 Hrs
50% stress, Ta =40°C, ground benign
Mechanical Shock
Mil-STD-883D, Method 2002.3
—
500
—
G
Half Sine, mounted to a fixture
Mechanical Vibration
Mil-STD-883D, Method 2007.2,
Suffix N
—
20 (7)
—
G
20-2000 Hz, PCB mounted
Suffixes A, C
—
20 (7)
—
Weight
—
20
—
grams
Flammability
—
Materials meet UL 94V-0
Notes: (1) This is a typical value. For the adjustment limits of a specific model consult the related application note on output voltage adjustment.
(2) The Inhibit control (pin 2) has an internal pull-up to Vin, and if left open-circuit the module will operate when input power is applied. A small low-
leakage (<100nA) MOSFET is recommended to control this input. See application notes for more information.
(3) An 820F electrolytic input capacitor is required for proper operation. This capacitor must be rated for a minimumm of 0.7 Arms of ripple current.
(4) For operation below 0°C, COUT must have stable characteristics. Use either low-ESR tantalum or Oscon type capacitors.
(5) See SOA curves or consult factory for the appropriate derating.
(6) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215°C. For
further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051)
(7) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
SLTS171A JANUARY 2003 - REVISED - MARCH 2003
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| PT5802N | 功能描述:开关变换器、稳压器与控制器 2.5V 18-A 5-V Input Adj Step-Down ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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