TPS62050DGS datasheet(15/30 Pages) TI1

15 / 30 page

, nominal

0.8%

1.6%

–1.6%

TPS62050, TPS62051, TPS62052, TPS62054, TPS62056

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SLVS432F – SEPTEMBER 2002 – REVISED JUNE 2015

Table 4. Capacitors

MANUFACTURER

PART NUMBER

SIZE

VOLTAGE

CAPACITANCE

TYPE

JMK212BJ106MG

0805

6.3 V

10 µF

Ceramic

JMK316BJ106ML

1206

6.3 V

10 µF

Ceramic

JMK316BJ226ML

1206

6.3 V

22 µF

Ceramic

Taiyo Yuden

LMK316BJ475ML

1206

10 V

4.7 µF(1)

Ceramic

EMK316BJ475ML

1206

16 V

4.7 µF(1)

Ceramic

EMK325BJ106KN-T

1210

16 V

10 µF

Ceramic

Kemet

C1206C106M9PAC

1206

6.3 V

10 µF

Ceramic

C2012X5R0J106M

0805

6.3 V

10 µF

Ceramic

TDK

C3216X5R0J226M

1206

6.3 V

22 µF

Ceramic

C3216X5R1A106M

1206

10 V

10 µF

Ceramic

(1)

Connect two in parallel.

10.2.1.2.4

Feedforward Capacitor

The feedforward capacitor (C(ff) shown in Figure 5) improves the performance in SKIP mode. The comparator is

faster; therefore, there is less voltage ripple at the output in SKIP mode. Use the values listed in Table 2. Larger

values decrease stability in fixed frequency PWM mode. If the TPS6205x devices are only operated in fixed

frequency PWM mode, the feedforward capacitor is not needed.

Figure 7. Power-Save Mode Output Voltage Thresholds

The converter enters the fixed frequency PWM mode again as soon as the output voltage falls below the

comparator low 2 threshold set to 1.6% below VO, nominal.

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