TEXAS INSTRUMENTS 78SR100 Technical data

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For assistance or to order, call (800) 531-5782

78SR100 Series

• Very Small Footprint

• High Efficiency > 85%

• Self-Contained Inductor

• Internal Short-Circuit Protection

• Over-Temperature Protection

• Wide Input Range

1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

The 78SR100 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.

Revised 6/30/98

Standard Application

Vin

78SR100

Pin-Out Information

Pin Function

2 GND

out

Vout

Ordering Information

78SR1

Output Voltage

05 = 5.0 Volts 53 = 5.25 Volts 06 = 6.0 Volts 74 = 7.15 Volts

XX Y

Package Suffix

V = Vertical Mount S = Surface Mount H = Horizontal

Mount

08 = 8.0 Volts

GNDGND

09 = 9.0 Volts 10 = 10.0 Volts 12 = 12.0 Volts 14 = 13.9 Volts

C1 = Optional 1µF ceramic C2

= Optional 1µF ceramic

Specifications

Characteristics (Ta = 25°C unless noted) Symbols Conditions Min Typ Max Units

Output Current I

Short Circuit Current I

Input Voltage Range V

Output Voltage Tolerance ∆V

Line Regulation Reg

Load Regulation Reg

Ripple/Noise V

Transient Response t

Efficiency η V

Switching Frequency ƒ

Absolute Maximum T Operating Temperature Range

Recommended Operating T Temperature Range At Vin= 24V, Io=1.0A

Thermal Resistance θ

Storage Temperature T

Mechanical Shock — Per Mil-STD-883D, Method 2002.3 — 500 — G’s

Mechanical Vibration — Per Mil-STD-883D, Method 2007.2,

Weight — — — 6.5 — grams

*ISR will operate down to no load with reduced specifications. **See Thermal Derating chart.

line

load

Pkg Style 500

Over Vin range 0.1* — 1.5 A

Vin = V

min — 3.5 — Apk

0.1 ≤ Io ≤ 1.5A V

Over Vin range, Io=1.5A

Ta = 0°C to +60°C

Over Vin range — ±0.2 ±0.4 %V

0.1 ≤ Io ≤ 1.5A — ±0.1 ±0.2 %V

Vin= 9V, Io= 1.5A Vo= 5V — 50 — mV Vin= 16V, Io= 1.5A Vo= 12V 80 mV

50% load change — 100 — µSec Vo over/undershoot — 30 — %V

= 10V, Io= 1A Vo= 5V — 85 — %

Vin= 17V, Io= 1A Vo= 12V — 90 — %

Over Vin range, Io=1.5A 600 650 700 kHz

—

Free Air Convection, (40-60LFM)

Free Air Convection, (40-60LFM) — 45 — °C/W

— -40 — +125 °C

20-2000 Hz, soldered in a PC board

= 5V 7 — 30 V

Vo= 12V 14.5 — 30 V

15 = 15.0 Volts

78SR100 SERIES

— ±1.0 ±2.0 %V

-40 — +85 °C

-40 — +80** °C

—5

—

G’s

pp pp

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com

CHARACTERISTIC DATA

For assistance or to order, call (800) 531-5782

78SR100 Series

78SR133_ 3.3 VDC (See Note 1)

78SR105_ 5.0 VDC (See Note 1)

Efficiency vs Output Current Efficiency vs Output Current

100

Efficiency (%)Ripple (mV)Iout (A)Pd (Watts)

0.0 0.5 1.0 1.5

Iout (A)

Vin

7.0V

10.0V

15.0V

20.0V

25.0V

30.0V

100

Efficiency (%)

0.0 0.5 1.0 1.5

Iout (A)

Ripple vs Output Current Ripple vs Output Current

0.0 0.5 1.0 1.5

Iout (A)

Vin

7.0V

10.0V

15.0V

20.0V

25.0V

30.0V

Ripple (mV)

0.0 0.5 1.0 1.5

Iout (A)

78SR112_ 12.0 VDC (See Note 1)

DATA SHEETS

Efficiency vs Output Current

100

Vin

7.0V

10.0V

15.0V

20.0V

25.0V

30.0V

Efficiency (%)

0.0 0.5 1.0 1.5

Vin

14.0V

20.0V

25.0V

30.0V

35.0V

Iout (A)

Ripple vs Output Current

140

Vin

7.0V

10.0V

15.0V

20.0V

25.0V

30.0V

120

100

Ripple (mV)Iout (A)

0.0 0.5 1.0 1.5

Iout (A)

Vin

14.0V

20.0V

25.0V

30.0V

35.0V

Thermal Derating (T

1.6

1.4

1.2

0.8

0.6

0.4

0.2

9 13172125

) (See Note 2) Thermal Derating (Ta) (See Note 2)

60°C

70°C

85°C

1.6

1.4

1.2

0.8

Iout (A)

0.6

0.4

0.2

9 12151821242730333639

60°C

70°C

85°C

Thermal Derating (T

1.6

1.4

1.2

0.8

0.6

0.4

0.2

85°C

16 19 22 25 28 31 34 37 40

Vin (Volts)

Power Dissipation vs Output Current Power Dissipation vs Output Current

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0.0 0.5 1.0 1.5

Vin

7.0V

10.0V

15.0V

20.0V

25.0V

30.0V

1.8

1.6

1.4

1.2

1.0

0.8

Pd (Watts)

0.6

0.4

0.2

0.0

0.0 0.5 1.0 1.5

Vin

7.0V

10.0V

15.0V

20.0V

25.0V

30.0V

Power Dissipation vs Output Current

2.5

2.0

1.5

1.0

Pd (Watts)

0.5

0.0

0.0 0.5 1.0 1.5

Iout (A) Iout (A) 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.)

70°C

Vin (Volts)Vin (Volts)

) (See Note 2)

60°C

Vin

14.0V

20.0V

25.0V

30.0V

35.0V

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com

PACKAGE OPTION ADDENDUM

www.ti.com

PACKAGING INFORMATION

Orderable Device Status

78SR105HC NRND SIP MOD

78SR105SC NRND SIP MOD

78SR105SCT OBSOLETE SIP MOD

78SR105TC NRND SIP MOD

78SR105VC NRND SIP MOD

78SR106HC NRND SIP MOD

78SR106SC NRND SIP MOD

78SR106SCT OBSOLETE SIP MOD

78SR106TC NRND SIP MOD

78SR106VC NRND SIP MOD

78SR108HC NRND SIP MOD

78SR108SC NRND SIP MOD

78SR108SCT OBSOLETE SIP MOD

78SR108VC NRND SIP MOD

78SR109HC NRND SIP MOD

78SR109SC OBSOLETE SIP MOD

78SR109SCT OBSOLETE SIP MOD

78SR109VC NRND SIP MOD

78SR110HC NRND SIP MOD

78SR110SC OBSOLETE SIP MOD

78SR110SCT OBSOLETE SIP MOD

78SR110VC NRND SIP MOD

78SR112HC NRND SIP MOD

78SR112SC NRND SIP MOD

78SR112SCT OBSOLETE SIP MOD

(1)

Package

Type

ULE

13-May-2005

Package Drawing

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Call TI

EFT 3 25 TBD Call TI Level-1-215C-UNLIM

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Call TI

EFT 3 25 TBD Call TI Level-1-215C-UNLIM

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Call TI

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Call TI

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Call TI

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

EFC 3 TBD Call TI Call TI

Pins Package

Qty

Eco Plan

(2)

Lead/Ball Finish MSL Peak Temp

(3)

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

Orderable Device Status

(1)

Package

78SR112TC NRND SIP MOD

Type

Package Drawing

Pins Package

Qty

Eco Plan

(2)

Lead/Ball Finish MSL Peak Temp

EFT 3 25 TBD Call TI Level-1-215C-UNLIM

13-May-2005

(3)

ULE

78SR112VC NRND SIP MOD

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR114HC NRND SIP MOD

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR114SC OBSOLETE SIP MOD

EFC 3 TBD Call TI Call TI

ULE

78SR114SCT OBSOLETE SIP MOD

EFC 3 TBD Call TI Call TI

ULE

78SR114VC NRND SIP MOD

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR114WC OBSOLETE SIP MOD

EFW 3 TBD Call TI Call TI

ULE

78SR115HC NRND SIP MOD

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR115SC NRND SIP MOD

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR115SCT OBSOLETE SIP MOD

EFC 3 TBD Call TI Call TI

ULE

78SR115TC OBSOLETE SIP MOD

EFT 3 TBD Call TI Level-1-215C-UNLIM

ULE

78SR115VC NRND SIP MOD

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR153HC NRND SIP MOD

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR153SC NRND SIP MOD

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR153SCT OBSOLETE SIP MOD

EFC 3 TBD Call TI Call TI

ULE

78SR153TC OBSOLETE SIP MOD

EFT 3 TBD Call TI Call TI

ULE

78SR153VC NRND SIP MOD

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR174HC NRND SIP MOD

EFA 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR174SC NRND SIP MOD

EFC 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

78SR174SCT OBSOLETE SIP MOD

EFC 3 TBD Call TI Call TI

ULE

78SR174VC NRND SIP MOD

EFD 3 25 TBD Call TI Level-1-215C-UNLIM

ULE

(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) or Green (RoHS & no Sb/Br) - please check

http://www.ti.com/productcontent for the latest availability information and additional product content details.

Addendum-Page 2

PACKAGE OPTION ADDENDUM

www.ti.com

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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13-May-2005

Addendum-Page 3

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TEXAS INSTRUMENTS 78SR100 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual