TPS62200, TPS62201

TPS62202, TPS62203

TPS62204, TPS62205

SLVS417B – MARCH 2002 – REVISED OCTOBER 2002

6

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detailed description (continued)

enable

Pulling the enable low forces the part into shutdown, with a shutdown quiescent current of typically 0.1

µA. In

this mode, the P-channel switch and N-channel rectifier are turned off, the internal resistor feedback divider is

disconnected, and the whole device is in shutdown mode. If an output voltage, which could be an external

voltage source or super cap, is present during shutdown, the reverse leakage current is specified under

electrical characteristics. For proper operation the enable pin must be terminated and must not be left floating.

Pulling the enable high starts up the TPS6220x with the soft start as previously described.

undervoltage lockout

The undervoltage lockout circuit prevents the device from misoperation at low input voltages. It prevents the

converter from turning on the switch or rectifier MOSFET under undefined conditions.

–0.3 V to 7.0 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltages on pins SW, EN, FB (see Note 1)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

See Dissipation Rating Table

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature (soldering, 10 sec)

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to network ground terminal.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

TA = 85°C

POWER RATING

DBV

357 mW

35 mW/

°C

192 mW

140 mW

NOTE: The thermal resistance junction to ambient of the 5-pin SOT23 is 250

°C/W.

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage, VI

2.5

6.0

V

Output voltage range for adjustable output voltage version, VO

0.7

VI

V

Output current, IO

300

mA

Inductor, L (see Note 2)

10

µH

Input capacitor, CI (see Note 2)

4.7

µF

Output capacitor, CO (see Note 2)

10

µF

Operating ambient temperature, TA

–40

85

°C

Operating junction temperature, TJ

–40

125

°C

NOTE 2: Refer to application section for further information