TI PT78ST109V

PT78ST100 Series
1.5 Amp Positive Step-Down
Integrated Switching Regulator
SLTS059A
(Revised 6/30/2000)
•
•
•
•
•
•
•
Very Small Footprint
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 wideinput range, 3-terminal regulators.
Pin-Out Information
Standard Application
Vin
1
PT78ST100
C1
2
COM
Function
1
Vin
2
GND
3
Vout
Ordering Information
PT78ST1 XX Y
Vout
3
C2
Pin
+
COM
C1 = Optional 1µF ceramic
C2 = Required 100µF electrolytic
Pkg Style 500
Specifications
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 voltages.
These 78 series regulators have excellent line and load regulation with internal
short- circuit and over-temperature protection, and are offered in a variety of standard
output voltages. These ISRs are very flexible and may be used in a wide variety of
applications.
Output Voltage
Package Suffix
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
PT78ST100 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0.1*
—
1.5
A
Short Circuit Current
Isc
Vin = Vin min
Input Voltage Range
Vin
0.1 ≤ Io ≤ 1.5A
Output Voltage Tolerance
∆Vo
Over Vin range, Io=1.5A
Line Regulation
Regline
Over Vin range
—
±0.2
±0.4
%Vo
Load Regulation
Regload
0.1 ≤ Io ≤ 1.5A
—
±0.1
±0.2
%Vo
Vo Ripple/Noise
Vn
Vin= 9V, Io= 1.5A
Vin= 16V, Io= 1.5A
—
65
90
—
mVpp
mVpp
Transient Response
(with 100µF output cap)
ttr
50% load change
Vo over/undershoot
—
—
100
5
—
—
µSec
%Vo
Efficiency
η
Vin= 10V, Io= 1A
Vin= 10V, Io= 1A
Vin= 17V, Io= 1A
—
—
—
80
85
90
—
—
—
%
%
%
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
θja
Free Air Convection, (40-60LFM)
—
45
—
°C/W
Storage Temperature
Ts
—
-40
—
+125
°C
—
500
—
G’s
G’s
grams
Vo= 3.3V
Vo= 5V
Vo= 12V
Ta = 0°C to +60°C
Vo= 5V
Vo= 12V
Vo= 3.3V
Vo= 5V
Vo= 12V
—
3.5
—
Apk
9
9
16
—
—
—
26
38
38
V
V
V
—
±1.0
±2.0
%Vo
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
5
—
Weight
—
—
—
6.5
—
*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
PT78ST105, 5.0 VDC
(See Note 1)
Efficiency vs Output Current
100
100
90
90
80
Vin
9.0V
70
12.0V
15.0V
60
20.0V
Efficiency - %
Efficiency - %
Efficiency vs Output Current
PT78ST112, 12.0 VDC
(See Note 1)
(See Note 1)
Efficiency vs Output Current
100
90
Efficiency - %
PT78ST133, 3.3 VDC
Vin
80
9.0V
12.0V
18.0V
24.0V
30.0V
38.0V
70
60
Vin
80
16.0V
18.0V
70
24.0V
30.0V
38.0V
60
26.0V
50
50
40
40
0
0.25
0.5
0.75
1
1.25
1.5
50
40
0
0.25
0.5
Iout-(Amps)
0.75
1
1.25
0
1.5
Ripple vs Output Current
Ripple vs Output Current
12.0V
40
9.0V
90
60
0
0
0.75
1
1.25
0.25
0.5
Iout-(Amps)
Thermal Derating (Ta)
150
30.0V
24.0V
18.0V
100
16.0V
50
0
0
1.5
Vin
38.0V
30
20
0.75
1
1.25
1.5
0
0.25
0.5
0.75
Thermal Derating (Ta)
(See Note 2)
1
1.25
1.5
Iout-(Amps)
Iout-(Amps)
1.6
1.5
200
38.0V
30.0V
24.0V
18.0V
12.0V
9.0V
Ripple-(mV)
15.0V
Ripple-(mV)
Ripple-(mV)
20.0V
1.25
250
Vin
26.0V
60
1
Ripple vs Output Current
Vin
0.5
0.75
300
120
80
0.25
0.5
Iout-(Amps)
150
100
0
0.25
Iout-(Amps)
Thermal Derating (Ta)
(See Note 2)
(See Note 2)
1.6
1.6
60°C
1.4
Iout-(Amps)
1.2
85°C
1
0.8
0.6
1.4
1.2
70°C
Iout-(Amps)
70°C
1.2
Iout-(Amps)
60°C
1.4
1
85°C
0.8
0.6
0.4
70°C
60°C
85°C
1
0.8
0.6
0.4
0.4
0.2
0.2
0.2
0
0
9
0
9
13
17
21
12
15
18
21
24
27
30
33
36
39
16
19
22
25
28
31
34
37
40
25
Vin-(Volts)
Vin-(Volts)
Power Dissipation vs Output Current
Vin-(Volts)
Power Dissipation vs Output Current
1.8
Power Dissipation vs Output Current
3
2.5
1.6
2.5
2
1.4
26.0V
20.0V
1
15.0V
0.8
12.0V
0.6
9.0V
0.4
38.0V
30.0V
24.0V
18.0V
12.0V
9.0V
1.5
1
PD-(Watts)
1.2
Vin
PD-(Watts)
PD-(Watts)
Vin
2
Vin
1.5
38.0V
1
30.0V
24.0V
18.0V
16.0V
0.5
0.5
0.2
0
0
0
0
0.25
0.5
0.75
1
Iout-(Amps)
1.25
1.5
0
0
0.25
0.5
0.75
1
1.25
0.25
0.5
0.75
1
1.25
1.5
1.5
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
I MPORTANT NOTI CE
Te xas Instrume nts and its subsidiarie s (TI) re se rve the right to make change s to the ir products or to discontinue
any product or se rvice without notice , and advise custome rs to obtain the late st ve rsion of re le vant information
to ve rify, be fore placing orde rs, that information be ing re lie d on is curre nt and comple te . All products are sold
subje ct to the te rms and conditions of sale supplie d at the time of orde r acknowle dgme nt, including those
pe rtaining to warranty, pate nt infringe me nt, and limitation of liability.
TI warrants pe rformance of its se miconductor products to the spe cifications applicable at the time of sale in
accordance with TI’s standard warranty. Te sting and othe r quality control te chnique s are utilize d to the e xte nt
TI de e ms ne ce ssary to support this warranty. Spe cific te sting of all parame te rs of e ach de vice is not ne ce ssarily
pe rforme d, e xce pt those mandate d by gove rnme nt re quire me nts.
Custome rs are re sponsible for the ir applications using TI compone nts.
In orde r to minimize risks associate d with the custome r’s applications, ade quate de sign and ope rating
safe guards must be provide d by the custome r to minimize inhe re nt or proce dural hazards.
TI assume s no liability for applications assistance or custome r product de sign. TI doe s not warrant or re pre se nt
that any lice nse , e ithe r e xpre ss or implie d, is grante d unde r any pate nt right, copyright, mask work right, or othe r
inte lle ctual prope rty right of TI cove ring or re lating to any combination, machine , or proce ss in which such
se miconductor products or se rvice s might be or are use d. TI’s publication of information re garding 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, Te xas Instrume nts Incorporate d
PACKAGE OPTION ADDENDUM
www.ti.com
13-Oct-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
PT78ST105H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST105S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST105ST
ACTIVE
SIP MOD
ULE
EFC
3
200
TBD
Call TI
Level-1-215C-UNLIM
PT78ST105U
NRND
SIP MOD
ULE
EFU
3
TBD
Call TI
Call TI
PT78ST105V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST106H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST106S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST106ST
ACTIVE
SIP MOD
ULE
EFC
3
200
TBD
Call TI
Level-1-215C-UNLIM
PT78ST106V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST107H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST107S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST107ST
ACTIVE
SIP MOD
ULE
EFC
3
200
TBD
Call TI
Level-1-215C-UNLIM
PT78ST108H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST108S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST108V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST109H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST109S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST109V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST110H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST110S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST110V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST112H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST112S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST112ST
ACTIVE
SIP MOD
ULE
EFC
3
200
TBD
Call TI
Level-1-215C-UNLIM
PT78ST112T
ACTIVE
SIP MOD
ULE
EFT
3
25
TBD
Call TI
Level-1-215C-UNLIM
Addendum-Page 1
Lead/Ball Finish
MSL Peak Temp (3)
PACKAGE OPTION ADDENDUM
www.ti.com
13-Oct-2005
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
PT78ST112V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST114H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST114S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST114V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST115H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST115S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST115ST
ACTIVE
SIP MOD
ULE
EFC
3
200
TBD
Call TI
Level-1-215C-UNLIM
PT78ST115V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST133H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST133S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST133ST
ACTIVE
SIP MOD
ULE
EFC
3
200
TBD
Call TI
Level-1-215C-UNLIM
PT78ST133V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST136H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST136S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST151H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST151S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST151V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST153H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST153S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST153V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST165H
ACTIVE
SIP MOD
ULE
EFA
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST165S
ACTIVE
SIP MOD
ULE
EFC
3
25
TBD
Call TI
Level-1-215C-UNLIM
PT78ST165V
ACTIVE
SIP MOD
ULE
EFD
3
25
TBD
Call TI
Level-1-215C-UNLIM
(1)
Lead/Ball Finish
MSL Peak Temp (3)
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.
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
13-Oct-2005
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) 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.
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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information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 3
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