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參數(shù)資料
| 型號： | PTH05000WAST |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | SMT-5 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 395K |
| 代理商： | PTH05000WAST |
For technical support and further information visit http://power.ti.com
Environmental & Absolute Maximum Ratings
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Operating Temperature Range
Ta
Over Vin Range
–40 (i)
—
+85
°C
Solder Reflow Temperature
Treflow
Surface temperature of module body or pins
235 (ii)
°C
Storage Temperature
Ts
—
–40
—
+125
°C
Over Temperature Protection
OTP
IC junction temperature
—
150
—
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
—
500
—
G’s
1 msec, sine, mounted
Mechanical Vibration
Mil-STD-883D, Method 2007.2
—20
—
G’s
20-2000 Hz
Weight
—
2
—
grams
Flammability
—
Meets UL 94V-O
Notes:
(i) For operation below 0 °C the external capacitors must have stable characteristics. Use either a low ESR tantalum, Os-con, or ceramic capacitor.
(ii) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum.
6-A, 5-V Input Non-Isolated
Wide-Output Adjust Power Module
SLTS201C – MAY 2003 – REVISED DECEMBER 2003
PTH05000W —5-V Input
Electrical Specifications Unless otherwise stated, Ta =25 °C, Vin =5 V, Vo =3.3 V, Cin =330 F, Cout =0 F, and Io =Io(max)
PTH05000W
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
0.9 V
≤ Vo ≤3.6 V, Ta =25 °C, natural convection
0
—
6
(1)
A
Ta =60 °C, 200LFM
0
—
5.25 (1)
Input Voltage Range
Vin
Over Io range
4.5
—
5.5
V
Set-Point Voltage Tolerance
Vo tol
—
±2 (2)
%Vo
Temperature Variation
Regtemp
–40 °C <Ta < +85 °C
—
±0.5
—
%Vo
Line Regulation
Regline
Over Vin range
—
±5
—
mV
Load Regulation
Regload
Over Io range
—
±5
—
mV
Total Output Variation
Regtot
Includes set-point, line, load,
—
±3 (2)
%Vo
–40 °C
≤ Ta ≤ +85 °C
Efficiency
η
Vin =5 V, Io =4 A
RSET = 475
Vo = 3.3 V
—
92
—
RSET = 2.32 k Vo = 2.5 V
—
90
—
RSET = 4.87 k Vo = 2.0 V
—
88
—
RSET = 6.65 k Vo = 1.8 V
—
87
—
%
RSET = 11.5 k Vo = 1.5 V
—
84
—
RSET = 26.1 k Vo = 1.2 V
—
82
—
RSET = 84.5 k Vo = 1.0 V
—
79
—
Vo Ripple (pk-pk)Vr
20 MHz bandwidth
Vo ≥3.3 V
—
30
—
mVpp
Vo ≤2.5 V
—
25
—
Transient Response
1 A/s load step, 50 to 100 % Iomax,
Vo =1.8 V, Cout =100 F
ttr
Recovery time
—
70
—
Sec
Vtr
Vo over/undershoot
—
100
—
mV
Current Limit
Ilim
Vo = –50 mV
—
13
—
A
Under-Voltage Lockout
UVLO
Vin increasing
—
3.8
4.3
V
Vin decreasing
3.4
3.5
—
Inhibit Control (pin 3)Referenced to GND
Input High Voltage
VIH
Vin –0.5
—
Open (3)
V
Input Low Voltage
VIL
–0.2
—
0.8
Input Low Current
IIL
Pin 3 to GND
—
–10
—
A
Standby Input Current
Iin standby
pins 1 & 3 connected
—
1
—
mA
Switching Frequency
s
Over Vin and Io ranges
—
700
—
kHz
External Input Capacitance
Cin
330 (4)
——F
External Output Capacitance
Cout
Capacitance value
non-ceramic
0
100 (5)
1,000 (6)
F
ceramic
0
—
300
Equiv. series resistance (non-ceramic)4
(7)
——m
Reliability
MTBF
Per Bellcore TR-332
28
——106 Hrs
50 % stress, Ta =40 °C, ground benign
Notes: (1) See SOA curves or consult factory for appropriate derating.
(2) The set-point voltage tolerance is affected by the tolerance and stability ofRSET. The stated limit is unconditionally met if RSET has a tolerance of 1 %
with 100 ppm/°C or better temperature stability.
(3) The Inhibit control (pin 3) 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 (<100 nA) MOSFET is recommended to control this input. See application notes for more information.
(4) The regulator requires a minimum of 330 F input capacitor with a minimum 300 mArms ripple current rating. For further information, consult the
related application note on Capacitor Recommendations.
(5) An external output capacitor is not required for basic operation. Adding 100 F of distributed capacitance at the load will improve the transient response.
(6) This is the calculated maximum. The minimum ESR limitation will often result in a lower value. Consult the application notes for further guidance.
(7) This is the typical ESR for all the electrolytic (non-ceramic) output capacitance. Use 7 m
as the minimum when using max-ESR values to calculate.
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