PT78ST100_07 [TI]
1.5 Amp Positive Step-Down Integrated Switching Regulator; 1.5安培正向降压集成开关稳压器
| 型号： | PT78ST100_07 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 1.5 Amp Positive Step-Down Integrated Switching Regulator |
| 文件： | 总7页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT78ST100 Series
1.5 Amp Positive Step-Down
Integrated Switching Regulator
SLTS059A
(Revised 6/30/2000)
•
•
•
•
•
•
•
Very Small Footprint
These ISRs have a maximum output current
of 1.5 Amps and an output voltage that is laser
trimmed to a variety of industry standard volt-
ages.
These 78 series regulators have excel-
lent line and load regulation with internal
short- circuit and over-temperature protec-
tion, and are offered in a variety of standard
output voltages. These ISRs are very flex-
ible and may be used in a wide variety of
applications.
High Efficiency > 85%
Self-Contained Inductor
Internal Short-Circuit Protection
Over-Temperature Protection
Fast Transient Response
Wide Input Range
The PT78ST100 is a series of wide-
input range, 3-terminal regulators.
Pin-Out Information
Ordering Information
PT78ST1
XX Y
Pin Function
1
2
3
Vin
Output Voltage
Package Suffix
GND
Vout
Standard Application
33 = 3.3 Volts
36 = 3.6 Volts
05 = 5.0 Volts
51 = 5.1 Volts
53 = 5.25 Volts
06 = 6.0 Volts
65 = 6.5 Volts
07 = 7.0 Volts
08 = 8.0 Volts
09 = 9.0 Volts
10 = 10.0 Volts
12 = 12.0 Volts
14 = 13.9 Volts
15 = 15.0 Volts
V = Vertical Mount
S = Surface Mount
H = Horizontal
Mount
Vin
Vout
1
3
PT78ST100
2
+
C1
COM
C2
COM
C1 = Optional 1µF ceramic
C2 = Required 100µF electrolytic
Pkg Style 500
Specifications
PT78ST100 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Io
Conditions
Min
0.1*
—
Typ
—
Max
Units
A
Output Current
Over Vin range
Vin = Vin min
0.1 ≤ Io ≤ 1.5A
1.5
—
Short Circuit Current
Input Voltage Range
Isc
3.5
Apk
Vin
Vo= 3.3V
Vo= 5V
9
—
—
—
26
38
38
V
V
V
9
Vo= 12V
16
Output Voltage Tolerance
∆Vo
Over Vin range, Io=1.5A
Ta = 0°C to +60°C
—
1.0
2.0
%V
o
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
Over Vin range
—
—
—
0.2
0.1
0.4
0.2
%V
%V
o
0.1 ≤ Io ≤ 1.5A
o
Vin= 9V, Io= 1.5A
Vin= 16V, Io= 1.5A
Vo= 5V
Vo= 12V
65
90
—
mVpp
mVpp
Transient Response
(with 100µF output cap)
ttr
50% load change
Vo over/undershoot
—
—
100
5
—
—
µSec
%V
o
Efficiency
η
Vin= 10V, Io= 1A
Vin= 10V, Io= 1A
Vin= 17V, Io= 1A
Vo= 3.3V
Vo= 5V
—
—
—
80
85
90
—
—
—
%
%
%
Vo= 12V
Switching Frequency
ƒo
Over Vin range, Io=1.5A
—
600
650
700
kHz
Absolute Maximum
Operating Temperature Range
Ta
-40
—
+85
°C
Recommended Operating
Temperature Range
Ta
Free Air Convection, (40-60LFM)
At Vin= 24V, Io=1.0A
-40
—
+80**
°C
Thermal Resistance
Storage Temperature
Mechanical Shock
θja
Ts
—
—
Free Air Convection, (40-60LFM)
—
—
45
—
°C/W
°C
-40
—
—
+125
—
Per Mil-STD-883D, Method 2002.3
500
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
—
—
5
G’s
Weight
—
—
6.5
—
grams
*ISR will operate down to no load with reduced specifications.
**See Thermal Derating chart.
Note: The PT78ST100 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Typical Characteristics
PT78ST100 Series
1.5 Amp Positive Step-Down
Integrated Switching Regulator
PT78ST133, 3.3 VDC (See Note 1)
PT78ST105, 5.0 VDC (See Note 1)
PT78ST112, 12.0 VDC (See Note 1)
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
100
90
100
90
80
70
60
50
40
100
90
Vin
Vin
80
80
9.0V
12.0V
18.0V
24.0V
30.0V
Vin
16.0V
18.0V
24.0V
30.0V
38.0V
9.0V
70
70
12.0V
15.0V
38.0V
60
60
20.0V
26.0V
50
50
40
40
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Ripple vs Output Current
Ripple vs Output Current
Ripple vs Output Current
150
120
90
60
30
0
300
250
200
150
100
50
100
80
60
40
20
0
Vin
26.0V
Vin
38.0V
30.0V
24.0V
18.0V
12.0V
9.0V
Vin
38.0V
20.0V
15.0V
12.0V
9.0V
30.0V
24.0V
18.0V
16.0V
0
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
1.6
1.4
1.2
1
1.6
1.4
1.2
1
1.6
1.4
1.2
1
60°C
60°C
70°C
70°C
70°C
60°C
85°C
85°C
85°C
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
9
12
15
18
21
24
27
30
33
36
39
16
19
22
25
28
31
34
37
40
9
13
17
21
25
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
1.8
1.6
1.4
1.2
1
3
2.5
2
2.5
2
Vin
Vin
38.0V
30.0V
24.0V
18.0V
12.0V
9.0V
26.0V
20.0V
15.0V
12.0V
9.0V
1.5
1
Vin
1.5
1
0.8
0.6
0.4
0.2
0
38.0V
30.0V
24.0V
18.0V
16.0V
0.5
0
0.5
0
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.)
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or se rvice s doe s not constitute TI’s approval, warranty or e ndorse me nt the re of.
Copyright 2000, Texas Instruments Incorporated
PACKAGE OPTION ADDENDUM
www.ti.com
9-Oct-2007
PACKAGING INFORMATION
Orderable Device
PT78ST105H
PT78ST105S
PT78ST105ST
PT78ST105U
PT78ST105V
PT78ST106H
PT78ST106S
PT78ST106ST
PT78ST106V
PT78ST107H
PT78ST107S
PT78ST107ST
PT78ST108H
PT78ST108S
PT78ST108V
PT78ST109H
PT78ST109S
PT78ST109V
PT78ST110H
PT78ST110S
PT78ST110V
PT78ST112H
PT78ST112S
PT78ST112T
PT78ST112V
Status (1)
ACTIVE
ACTIVE
ACTIVE
NRND
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SIP MOD
ULE
EFA
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
25
Pb-Free
(RoHS)
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N / A for Pkg Type
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Call TI
SIP MOD
ULE
EFC
EFC
EFU
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFA
EFC
EFD
EFA
EFC
EFD
EFA
EFC
EFD
EFA
EFC
EFT
EFD
25
Pb-Free
(RoHS)
SIP MOD
ULE
200
Pb-Free
(RoHS)
SIP MOD
ULE
TBD
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SIP MOD
ULE
25
25
25
200
25
25
25
200
25
25
25
25
25
25
25
25
25
25
25
25
25
Pb-Free
(RoHS)
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
Level-1-215C-UNLIM
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
9-Oct-2007
Orderable Device
PT78ST114H
PT78ST114S
PT78ST114V
PT78ST115H
PT78ST115S
PT78ST115ST
PT78ST115V
PT78ST133H
PT78ST133S
PT78ST133V
PT78ST136H
PT78ST151H
PT78ST151S
PT78ST153H
PT78ST153S
PT78ST153V
PT78ST165H
PT78ST165S
PT78ST165V
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SIP MOD
ULE
EFA
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
25
25
25
25
25
200
25
25
25
25
25
25
25
25
25
25
25
25
25
Pb-Free
(RoHS)
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
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N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
N / A for Pkg Type
Level-1-215C-UNLIM
N / A for Pkg Type
SIP MOD
ULE
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFD
EFA
EFA
EFC
EFA
EFC
EFD
EFA
EFC
EFD
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
SIP MOD
ULE
Pb-Free
(RoHS)
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
9-Oct-2007
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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Addendum-Page 3
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Customers should obtain the latest relevant information before placing orders and should verify that such information is current and
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s
standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this
warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily
performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should
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