TI 78ST105

For assistance or to order, call
(800) 531-5782
78ST100
Series
1.5 AMP POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
•
•
•
•
•
•
•
Very Small Footprint
High Efficiency > 85%
Self-Contained Inductor
Internal Short-Circuit Protection
Over-Temperature Protection
Fast Transient Response
Wide Input Range
Pin-Out Information
Standard Application
Vin
1
78ST100
C1
2
GND
Function
1
Vin
2
GND
3
Vout
The 78ST100 is a series of wide input
voltage, 3-terminal Integrated Switching
Regulators (ISRs). These ISRs have a maximum output current of 1.5A 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 shortcircuit and over-temperature protection, are
very flexible, and may be used in a wide
variety of applications.
Ordering Information
78ST1 XX
Vout
3
C2
Pin
Revised 6/30/98
+
GND
Y C
Output Voltage
Package Suffix
33 = 3.3 Volts
36 = 3.6 Volts
05 = 5.0 Volts
51 = 5.1 Volts
65 = 6.5 Volts
07 = 7.0 Volts
08 = 8.0 Volts
09 = 9.0 Volts
12 = 12.0 Volts
V = Vertical Mount
S = Surface Mount
H = Horizontal
Mount
C1 = Optional 1µF ceramic
C2 = Required 100µF electrolytic
Pkg Style 500
Specifications
78ST100 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
—
3.5
—
Apk
Input Voltage Range
Vin
0.1 ≤ Io ≤ 1.5A
7
7
14.5
—
—
—
26
30
30
V
V
V
Output Voltage Tolerance
∆Vo
Over Vin range, Io=1.5A
—
±1.0
±2.0
%Vo
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
Vo= 3.3V
Vo= 5V
Vo= 12V
Ta = 0°C to +60°C
Vo= 5V
Vo= 12V
Vo= 3.3V
Vo= 5V
Vo= 12V
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
—
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 78ST100 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
2
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
(800) 531-5782
For assistance or to order, call
78ST100
CHARACTERISTIC
78ST105_ 5.0 VDC
(See Note 1)
Efficiency vs Output Current
Efficiency vs Output Current
90
Efficiency vs Output Current
90
70
60
Vin
80
70
50
40
40
1.0
20.0V
25.0V
30.0V
60
50
0.5
7.0V
10.0V
15.0V
1.5
Efficiency (%)
7.0V
10.0V
15.0V
20.0V
25.0V
30.0V
Efficiency (%)
80
60
1.0
0.0
1.5
0.5
1.0
Iout (A)
Ripple vs Output Current
Ripple vs Output Current
Ripple vs Output Current
140
70
Vin
7.0V
10.0V
15.0V
20.0V
25.0V
30.0V
30
20
Ripple (mV)
40
120
60
Vin
7.0V
10.0V
15.0V
20.0V
25.0V
50
40
30
30.0V
100
Ripple (mV)
50
1.5
60
0
0
1.0
14.0V
20.0V
25.0V
30.0V
35.0V
20
10
0
Vin
80
40
20
10
0.0
0.5
Iout (A)
1.0
0.0
1.5
0.5
1.0
Iout (A)
Thermal Derating (Ta)
1.5
Iout (A)
Thermal Derating (Ta)
(See Note 2)
1.6
1.5
Iout (A)
80
0.5
14.0V
20.0V
25.0V
30.0V
35.0V
70
40
0.5
Iout (A)
0.0
Vin
80
50
0.0
60
(See Note 1)
100
90
Vin
0.0
Ripple (mV)
78ST112_ 12.0 VDC
(See Note 1)
100
100
Efficiency (%)
DATA
DATA SHEETS
78ST133_ 3.3 VDC
Series
Thermal Derating (Ta)
(See Note 2)
(See Note 2)
1.6
1.6
60°C
1.4
60°C
85°C
Iout (A)
70°C
1
0.8
70°C
1
85°C
0.8
1
85°C
0.8
0.6
0.6
0.6
0.4
0.4
0.4
0.2
0.2
0.2
0
0
9
13
17
21
0
9
25
12
15
18
Vin (Volts)
21
24
27
30
33
36
16
39
19
22
25
Vin (Volts)
Power Dissipation vs Output Current
31
34
37
40
Power Dissipation vs Output Current
1.8
2.5
1.6
1.4
7.0V
10.0V
15.0V
20.0V
25.0V
30.0V
1.0
0.8
0.6
Pd (Watts)
1.2
Vin
1.2
7.0V
10.0V
15.0V
20.0V
25.0V
30.0V
1.0
0.8
0.6
0.4
0.4
0.2
0.2
0.0
2.0
1.4
Vin
0.5
1.0
Iout (A)
1.5
14.0V
20.0V
25.0V
30.0V
35.0V
1.5
1.0
0.5
0.0
0.0
0.0
Vin
Pd (Watts)
1.6
28
Vin (Volts)
Power Dissipation vs Output Current
1.8
Pd (Watts)
60°C
1.2
1.2
Iout (A)
1.2
Iout (A)
1.4
1.4
70°C
0.0
0.5
1.0
1.5
0.0
0.5
Iout (A)
1.0
1.5
Iout (A)
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.)
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
3
PACKAGE OPTION ADDENDUM
www.ti.com
23-Aug-2012
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
NRND
SIP MODULE
EFA
3
25
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
78ST105SC
NRND
SIP MODULE
EFC
3
25
Pb-Free (RoHS)
Call TI
Level-1-215C-UNLIM
OBSOLETE SIP MODULE
TBD
Call TI
Call TI
25
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
EFC
3
SIP MODULE
EFD
3
78ST107HC
OBSOLETE SIP MODULE
EFA
3
TBD
Call TI
Call TI
78ST105VC
NRND
78ST107SC
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST107SCT
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST107VC
OBSOLETE SIP MODULE
EFD
3
TBD
Call TI
Call TI
78ST108HC
OBSOLETE SIP MODULE
EFA
3
TBD
Call TI
Call TI
78ST108SC
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST108SCT
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST108VC
OBSOLETE SIP MODULE
EFD
3
TBD
Call TI
Call TI
SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST109SCT
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST109TC
OBSOLETE SIP MODULE
EFT
3
TBD
Call TI
Call TI
78ST109SC
NRND
78ST112HC
NRND
SIP MODULE
EFA
3
25
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
78ST112SC
NRND
SIP MODULE
EFC
3
25
Pb-Free (RoHS)
Call TI
Level-1-215C-UNLIM
78ST112SCT
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST112TC
OBSOLETE SIP MODULE
EFT
3
TBD
Call TI
Call TI
78ST112VC
NRND
SIP MODULE
EFD
3
25
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
78ST133HC
NRND
SIP MODULE
EFA
3
25
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
NRND
SIP MODULE
EFC
3
25
Pb-Free (RoHS)
Call TI
Level-1-215C-UNLIM
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST133SC
78ST133SCT
78ST133VC
NRND
25
SIP MODULE
EFD
3
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
78ST136SC
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST136SCT
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST136VC
OBSOLETE SIP MODULE
EFD
3
TBD
Call TI
Call TI
78ST151HC
OBSOLETE SIP MODULE
EFA
3
TBD
Call TI
Call TI
78ST151SC
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
78ST151SCT
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
Addendum-Page 1
Samples
(Requires Login)
78ST105HC
78ST105SCT
(3)
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
78ST151VC
23-Aug-2012
Status
(1)
Package Type Package
Drawing
OBSOLETE SIP MODULE
Pins
EFD
3
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
TBD
Call TI
Call TI
NRND
SIP MODULE
EFA
3
25
Pb-Free (RoHS)
Call TI
N / A for Pkg Type
78ST165SC
NRND
SIP MODULE
EFC
3
25
Pb-Free (RoHS)
Call TI
Level-1-215C-UNLIM
OBSOLETE SIP MODULE
EFC
3
TBD
Call TI
Call TI
EFD
3
TBD
Call TI
Call TI
78ST165VC
NRND
SIP MODULE
Samples
(Requires Login)
78ST165HC
78ST165SCT
(3)
(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 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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provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
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Addendum-Page 2
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