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参数资料
| 型号： | PT5501C |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR |
| 封装： | HORIZONTAL SURFACE MOUNT, 5 PIN |
| 文件页数： | 1/2页 |
| 文件大小： | 79K |
| 代理商： | PT5501C |
For assistance or to order, call (800) 531-5782
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.ti.com/powertrends
Standard Application
C1 = Optional 1F ceramic
C2 = Required 100F electrolytic (1)
Ordering Information
PT5501! = +3.3 Volts
PT5502! = +2.5 Volts
PT5503! = +2.0 Volts
PT5504! = +1.8 Volts
PT5505! = +1.5 Volts
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
Pin
Function
1
Inhibit
2Vin
3
GND
4Vout
5VoutAdjust
Features
Single-Device: 5V/3.3V Input
90% Efficiency
Small Footprint
New 5-pin Copper Package
Adjustable Output Voltage
Standby Function
Short Circuit Protection
3 AMP ADJUSTABLE LOW-VOLTAGE
INTEGRATED SWITCHING REGULATOR
PT5500
Series
Pin-Out Information
PT5500
2
3
4
5
V
IN
GND
V
OUT
C2
+
1
INH
C1
V
OADJ
Preliminary 6/2/2000
(For dimensions and PC board layout,
see Package Styles 510 and 520.)
ADVANCED INFORMATION
For Inhibit pin:
Open = output enabled
Ground = output disabled
(Patent pending on package assembly)
New
Space-Saving
Package
Description
The PT5500 is a new series of high perfor-
mance 3.0 Amp, 5-pin Integrated Switching
Regulators (ISRs). This ISR operates from
input voltages as low as 3.0V to provide a
lower voltage power source for the latest
low-voltage logic IC’s. Features include
output voltage adjustment, inhibit function,
and short circuit protection. Only one ex-
ternal capacitor is required for proper
operation.
Specifications
Characteristics
PT5500 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0.1 (2)
—3.0
A
Current Limit
Icl
Vin =5V
—
5.0
—
A
Input Voltage Range
Vin
0.1A
≤ Io ≤ Iomax
Vo =3.3V
4.5
—
5.5
V
Vo ≤2.5V
3.1
5.5
Output Voltage Tolerance
Vo
Vin =5V, Io =Iomax
Vo ≥2.5V
—
50
mV
Ta =-40°C to +85°C
Vo <2.5V
—
35
Line Regulation
Regline
Io =Iomax, Over Vin range
—
±6.0
±10
mV
Load Regulation
Regload
Vin =5V, 0.1A≤ Io ≤Iomax
—
±10
±25
mV
Vo Ripple/Noise
Vn
Vin =5V, Io =Iomax
—
45
—
mV
Transient Response
ttr
Io step between 1.5A and 3.0A
—
200
—
Sec
with C2 = 100F
Vos
Vo over/undershoot
—
150
—
mV
Efficiency
η
Vin =5V, Io =Iomax
PT5501
—
90
—
PT5502
—
87
—
PT5503
—
85
—
%
PT5504
—
83
—
PT5505
—
81
—
Switching Frequency
o
Over Vin range, 0.1A≤ Io ≤ Iomax
—
350 (3)
—
kHz
Absolute Maximum
Ta
Over Vin range
–40 (4)
—+85 (5)
°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
—
G’s
Weight
—
6.5
—
grams
Notes: (1) The PT5500 Series requires a 100F electrolytic or tantalum output capacitor for proper operation in all applications.
(2) The ISR will operate down to no load with reduced specifications.
(3) This is a typical value only. The switching frequency will vary with input voltage.
(4) For operation below 0°C, the output capacitor C2 must have stable characteristics. Use either a low ESR tantalum or Oscon capacitor.
(5) See SOA curves or consult factory for the appropriate derating.
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| PT5502A | SWITCHING REGULATOR |
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| PT5501N | 功能描述:DC/DC转换器 3.3Vout 3Amp 5V-In put Adj Step-Dwn ISR RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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| PT-5502 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TRANSISTOR | BJT | NPN | 80V V(BR)CEO | 50A I(C) | TO-210AE |
| PT5502A | 功能描述:DC/DC转换器 2.5Vout 3Amp 3.3V/5V RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT5502C | 功能描述:DC/DC转换器 2.5Vout 3A 3.3V/5V In Adj Step-Down ISR RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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