STR Series

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2

Switching Regulator

Input

Output

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Output Voltage

1.4

15.5

VDC

See Models and Ratings table

Initial Set Accuracy

±2.0

±3.0

%

Minimum Load

A

No minimum load required

Line Regulation

±0.2

±0.4

%

1.5 V to 6.5 V

±0.1

±0.2

9 V to 15 V

Load Regulation

±0.4

±0.6

%

1.5 V to 6.5 V

±0.25

±0.4

9 V to 15 V

Transient Response

2

% deviation

Recovery within 1% in less than 100 µs for a 50% load

change.

Ripple & Noise

30

mV pk-pk

1.5V to 6.5V. 20 MHz bandwidth. Measured using 0.47 µF

ceramic capacitor.

40

9V to 15V. 20 MHz bandwidth. Measured using 0.47 µF

ceramic capacitor.

Short Circuit Protection

Continuous, with auto recovery

Maximum Capacitive Load

220

µF

Temperature Coefficient

0.02

%/ ˚C

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Input Voltage Range

32

VDC

See Models and Ratings table. A 22 µF / 50 V capacitor is

required across the input for voltages above 28 VDC. Input

voltages must be >1.5 V higher than output voltage for 3.3 V

to 5 V versions and >3.0V for 6.5 V to 15 V versions

Input Filter

Internal Capacitor

Input Surge

34

VDC for 1 s

Input Current - No Load

5

mA

Input Current - Remote On/Off

35

µA

At 24 V input

Remote On/Off

ON: Logic high (2.4 - 5 V) or open circuit

OFF: Logic low (<1.6 V) or short pin 10 to pin 7, 8 or 9

Input current is 35 µA max at nominal input voltage when output is remotely turned off

General

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Efficiency

94

%

See Models and Ratings table

Isolation: Input to Output

No isolation

Switching Frequency

280

330

380

kHz

Mean Time Between Failure

2.0

MHrs

MIL-HDBK-217F, +25 °C GB

Weight

0.004 (1.7)

lb (g)

Moisture Sensitivity Level

Level 2

IPC/JEDEC J-STD-020D.1

Environmental

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Operating Temperature

-40

+100

°C

See Derating Curve.

Storage Temperature

-55

+125

°C

Case Temperature

+95

°C

Thermal Shutdown

160

°C

Measured internally

Humidity

95

%RH

Non-condensing

Cooling

Natural convection

Case Flammability

UL 94V-0 Rated

Non conductive black plastic

Lead-Free Reflow Solder Process

IPC/JEDEC J-STD-020D.1