PT5103C datasheet(2/7 Pages) TI

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PT5100 Series

1-A Positive Step-down

Integrated Switching Regulator

Specifications (Unless otherwise stated, Ta =25°C, Vin =Vinmin, Cout =100µF, and Io =Iomax)

PT5100 SERIES

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Output Current

Over Vin range

0.1 (1)

—

1.0

Input Voltage Range

Vin

Over Io Range

Vo=3.3V

—

Vo=5.0V

—

VDC

Vo>5.0V

Vo + 4

—

Set Point Voltage Tolerance

Vo tol

—

±1±2%Vo

Temperature Variation

Regtemp

0°

≤Ta ≤ +60°C, Io =Iomin

—

±0.5

—

%Vo

Line Regulation

Regline

Over Vin range

—

±5

±10

Load Regulation

Regload

Over Io range

—

±5

±10

Total Output Voltage Variation

∆Votot

Includes set-point, line, load,

—

±1.5

±3

%Vo

0°

≤Ta ≤ +60°C

Efficiency

Vo = 15V

—

Vo = 12V

—

Vo = 10V

—

Vo =5.0V

—

Vo =3.3V

—

Vo Ripple (pk-pk)

20MHz bandwidth

—

%Vo

Transient Response

ttr

1A/µs load step, 50% to 100% Iomax

—

100

200

µs

∆Vtr

Vo over/undershoot

—

±5.0

—

%Vo

Current Limit

Ilim

∆Vo = –1%

1.2

2.6

—

Switching Frequency

ƒs

Over Vin range

Vo≥ 5.0V

500

650

800

kHz

Vo ≤ 3.3V

575

725

875

External Output Capacitance

Cout

100

—

µF

Operating Temperature Range

Over Vin range

–40 (2)

—

+85 (3)

°C

Thermal Resistance

θja

Free-air convection (40-60LFM)

Vo =3.3V

—

Vo =5.0V

—

°C/W

Vo ≥ 12V

—

Storage Temperature

—

–40

—

+125

°C

Reliability

MTBF

Per Bellcore TR-332

11.3

—

106 Hrs

50% stress, Ta =40°C, ground benign

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

—

5 (4)

—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.

(2) For operation below 0°C, use a tantalum type capacitor for C2.

(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.

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