TPS60210, TPS60211, TPS60212, TPS60213

REGULATED 3.3 V, LOW RIPPLE CHARGE PUMP

WITH ULTRALOW OPERATING CURRENT

SLVS296 − JUNE 2000

2

POST OFFICE BOX 655303

description (continued)

Three operating modes can be programmed using the SNOOZE pin. When SNOOZE is low, the device is put

into snooze mode. In snooze mode, the device operates with a typical quiescent current of 2

µA while the output

voltage is maintained at 3.3 V

±6%. This is lower than the self-discharge current of most batteries. Load current

in snooze mode is limited to 2 mA. When SNOOZE is high, the device is put into normal operating mode. During

normal operating mode, the device operates in the newly developed linskip mode where it switches seamlessly

from the power saving pulse-skip mode at light loads to the low-noise constant-frequency linear-regulation

mode once the output current exceeds the linskip current threshold of about 7 mA. In this mode, the device

operates from the internal oscillator. The device is synchronized to an external clock signal if SNOOZE is

clocked; thus switching harmonics can be controlled and minimized.

Only four external capacitors are needed to build a complete low-ripple dc/dc converter. The push-pull operating

mode of two single-ended charge pumps assures the low output voltage ripple as charge is continuously

transferred to the output. All the devices can start with full load current. The devices include a low-battery

detector that issues a warning if the battery voltage drops below a user-defined threshold voltage or a

power-good detector that goes active when the output voltage reaches about 90% of its nominal value. This

dc/dc converter requires no inductors; therefore, EMI of the system is reduced to a minimum, making it easier

to use in designs. It is available in the small 10-pin MSOP package (DGS).

DGS PACKAGES

1

2

3

4

5

10

9

8

7

6

LBI

GND

C1−

C1+

OUT

LBO

SNOOZE

C2−

IN

C2+

TPS60210

TPS60212

1

2

3

4

5

10

9

8

7

6

GND

GND

C1−

C1+

OUT

PG

SNOOZE

C2−

IN

C2+

TPS60211

TPS60213

AVAILABLE OPTIONS

TA

PART NUMBER†

MARKING

DGS

PACKAGE

OUTPUT

CURRENT

(mA)

OUTPUT

VOLTAGE

(V)

DEVICE FEATURES

TPS60210DGS

AFD

100

3.3

Low-battery detector

−40

°C to 85°C

TPS60211DGS

AFE

100

3.3

Power-good detector

−40

°C to 85°C

TPS60212DGS

AFF

50

3.3

Low-battery detector

TPS60213DGS

AFG

50

3.3

Power-good detector

† The DGS package is available taped and reeled. Add R suffix to device type (e.g., TPS60210DGSR) to order

quantities of 3000 devices per reel.