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參數(shù)資料
| 型號(hào)： | PT5527N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, SMA5 |
| 封裝： | SIP-5 |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大?。?/td> | 178K |
| 代理商： | PT5527N |
For technical support and more information, see inside back cover or visit www.ti.com
PT5520 Series
1.5-A 5-V/3.3-V Input Adjustable
Integrated Switching Regulator
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cout =100F, and Io =Iomax)
PT5520 SERIES
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0.1 (1)
—
1.5
A
Input Voltage Range
Vin
Over Io range
Vo =3.3V4.5
—
5.5
V
Vo≤2.5V3.1
5.5
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
—
±6
mV
Load Regulation
Regload
Over Io range
—
±10
mV
Total Output Variation
Regtot
Includes set-point, line, load,
——±3
%Vo
–40°C
≤ Ta ≤ +85°C
Efficiency
η
PT5521
—
89
—
PT5522
—
86
—
PT5523
—
84
—
PT5524
—
83
—
%
PT5525
—
81
—
PT5526
—
79
—
PT5527
—
76
—
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
—
15
30
mV
Transient Response
ttr
1A/s load step from 50% to 100% Iomax
—
50
—
Sec
Vtr
Vo over/undershoot
—
50
100
mV
Current Limit
Ilim
—4
—A
Switching Frequency
o
Over Vin and Io ranges
—
600 (2)
—
kHz
Inhibit Control (pin1)
Input High Voltage
VIH
Referenced to GND (pin3)
Vin –0.5
—
Open (3)
V
Input Low Voltage
VIL
–0.2
—
0.5
Input Low Current
IIL
Pin 1 to GND
—
–0.5
—
mA
External Capacitance
Cout
100 (4)
——F
Absolute Maximum
Ta
Over Vin range
–40 (5)
—
+85 (6)
°C
Operating Temperature Range
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3 , 1 msec,
—
500
—
G’s
Half Sine, mounted to a fixture
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
—
15 (7)
—G’s
Weight
—
6.5
—
grams
Flammability
—
Materials meet UL 94V-0
Notes: (1) The ISR will operate down to no load with reduced specifications.
(2) This is a typical value only. The switching frequency will vary with input voltage.
(3) The Inhibit control (pin 1) has an internal pull-up, 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. Ensure an On/Off transition time of
≤10s. See application notes for more information.
(4) The PT5520 Series requires a 100F electrolytic or tantalum output capacitor for proper operation in all applications.
(5) For operation below 0°C, the output capacitor C2 must have stable characteristics. Use either a low ESR tantalum or Oscon capacitor.
(6) See SOA curves or consult factory for the appropriate derating.
(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.
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