TP78xx-2 Series

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DESCRIPTION：

TP78XX-2 series switching regulators are ideal replacement for TP78xx linear regulators and

LDOs. The efficiency of up to 92% means that very little energy is wasted as heat so there is

no need for any heat sinks with their additional space and mounting costs. They are widely

used in industrial control, instrumentation, and electric power applications.

Wide Input Non-Isolated & Regulated Single Output

OUTPUT CHARACTERISTICS

Parameter

Conditions

Min

Typ.

Max.

Units

Output voltage accuracy

100% full load, input voltage range

±2

±3

%

Line regulation

Vin=min. to max, at full load

±0.5

±0.75

Load regulation

10% to 100% load

±0.5

±1.0

Ripple & Noise

20MHz bandwidth,(refer to figure 3)

25

45

mvp-p

Short circuit protection

Continuous, auto-recovery

Thermal shutdown

Internal IC junction

150

℃

Output current limit

5000

mA

Switching frequency

Full load, input voltage range

300

340

380

KHz

Dynamic load stability

±100

mA

Quiescent current

Vin from min to max and at 0% load

5

10

mA

Temperature coefficient

–40 ~+85

℃℃

±0.03

%/℃

Max capacitance load

1000

μF

All specifications typical at TA=25ºC, nominal input voltage and rated output current unless otherwise specified.

COMMON SPECIFICATIONS

Parameter

Conditions

Min.

Typ.

Max.

Units

Storage humidity range

95

℃

Operating temp. range

Power derating (above 71ºC)

-40

85

Storage temp. range

-55

125

Storage temp. Range Temp rise at full load

100

Lead temperature

1.5mm from case for 10 seconds

300

Cooling

Free air convection

Case material

Plastic (UL94-V0)

MTBF

25℃（MIL-HDBK-217F）

2000

k hours

Weight

4.0

g

FEATURES

ROHS Compliant

Wide input non-isolated、regulated single output

Efficiency up to 93%

Short circuit protection, Thermal shutdown

Temperature range: -40ºC ~ +85ºC

Low ripple noise

SIP package

No heat sink required

Industry standard pinout

SELECTION GUIDE

Part Number

Input Voltage (VDC)

Output

Efficiency（%）

Nominal

Range

Voltage（VDC)

Current（mA)

Vin (Min)

Vin(Max)

TP781.5-2

12

4.75~18

1.5

2000

79

76

TP781.8-2

12

4.75~18

1.8

2000

81

79

TP782.5-2

12

4.75~18

2.5

2000

85

83

TP783.3-2

12

4.75~18

3.3

2000

87

86

TP785.0-2

12

7-18

5.0

2000

91

88

TP786.5-2

12

8.5-18

6.5

2000

92

91

The above part number with "L" Suffix are 90˚ bent pins power converters, for example TP781.5-2L.

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