TPS60121 datasheet(10/27 Pages) TI

10 / 27 page

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125

REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP

DC/DC CONVERTERS

SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics at CI = 10 µF, C1F = C2F = 2.2 µF, CO = 22 µF, TC = –40°C to 85°C, VI = 2 V,

VFB = VO and V(ENABLE) = VI (unless otherwise noted) (continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V(PGTRIP)

Power-good trip voltage

TPS60121, TPS60123,

TPS60125

TC = 0°C to 70°C

0.86

0.90

0.94

Vhys(PG)

Power-good trip voltage

hysteresis

TPS60121, TPS60123,

TPS60125

VO ramping negative,

TCA = 0°C to 70°C

0.8%

VO(PG)

Power-good output

voltage low (see Note 2)

TPS60121, TPS60123,

TPS60125

VO = 0 V, I(PG,SINK) = 1 mA

0.4

Ilkg(PG)

Power-good leakage

current

TPS60121, TPS60123,

TPS60125

VO = 3.3 V, V(PG) = 3.3 V

0.01

0.1

µA

NOTE 2: During start-up the LBO and PG output signal is invalid for the first 500

µs.

PARAMETER MEASUREMENT INFORMATION

LBI

C1+

C1–

ENABLE

PGND GND

OUT

LBO

C2+

C2–

µF

2.2

µF

2.2

µF

Off/On

TPS6012x

2 x 10

µF

Used capacitor types:

Ci: Ceramic, X7R

Co: Ceramic, X7R

C1, C2: Ceramic, X7R

Figure 5. Circuit Used For Typical Characteristics Measurements

TYPICAL CHARACTERISTICS

Table of Graphs

FIGURE

Efficiency

vs Output Current (TPS60120, TPS60122, and TPS60124)

6, 7, 8

Efficiency

vs Input Voltage (TPS60120, TPS60122, and TPS60124)

9, 10, 11

Supply Current

vs Input Voltage

Output Voltage

vs Output Current (TPS60120, TPS60122, and TPS60124)

13, 14, 15

Output Voltage

vs Input Voltage (TPS60120, TPS60122, and TPS60124)

16, 17, 18

Output Voltage Ripple

vs Time

19, 20, 21

VPP

Output Voltage Ripple Amplitude

vs Input Voltage

f(OSC)

Oscillator Frequency

vs Input Voltage

Load Transient Response

Line Transient Response

Output Voltage

vs Time (Start-Up Timing)

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