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PT5100 Series

1-A Positive Step-down

Integrated Switching Regulator

PT5100 SERIES

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Output Current

—

1.0

A

Input Voltage Range

9

—

26

9

—

38

VDC

—

38

Set Point Voltage Tolerance

—

Temperature Variation

0°

—

±0.5

—

Line Regulation

—

±5

±10

mV

Load Regulation

—

±5

±10

mV

Total Output Voltage Variation

Includes set-point, line, load,

—

±1.5

±3

0°

Efficiency

η

—

95

—

—

94

—

—

92

—

%

—

90

—

—

82

—

20MHz bandwidth

—

2

—

Transient Response

—

100

200

µs

—

±5.0

—

Current Limit

1.2

2.6

—

A

Switching Frequency

500

650

800

kHz

575

725

875

External Output Capacitance

100

—

—

µF

Operating Temperature Range

—

°C

Thermal Resistance

Free-air convection (40-60LFM)

—

45

—

—

50

—

°C/W

—

60

—

Storage Temperature

—

–40

—

+125

°C

Reliability

MTBF

Per Bellcore TR-332

11.3

—

—

Mechanical Shock

—

Per Mil-Std-883D, method 2002.3,

—

500

—

G’s

1mS, half-sine, mounted to a fixture

Mechanical Vibration

—

Per Mil-Std-883D, Method 2007.2

—

—G’s

20-2000Hz, soldered in PC board

Weight

—

Suffixes N, A, & C

—

4.5

—

grams

Suffixes L & M

—

6.5

—

Flammability

—

Materials meet UL 94V-0

Notes:

(1) The ISR will operate at no load with reduced specifications.

(3) See Thermal Derating curves.

(4) The tab pins on the 5-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing.