TPS62000Q1, TPS62001Q1, TPS62002Q1, TPS62003Q1

TPS62004Q1, TPS62005Q1, TPS62006Q1, TPS62007Q1, TPS62008Q1

HIGHEFFICIENCY STEPDOWN LOW POWER DCDC CONVERTER

SGLS243A − APRIL 2004 − REVISED JUNE 2008

2

POST OFFICE BOX 655303

description (continued)

The TPS6200x is a synchronous current-mode PWM converter with integrated N- and P-channel power

MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component

count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving

pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz,

allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock

signal in the range of 500 kHz to 1 MHz. For low-noise operation, the converter can be operated in the PWM

mode and the internal antiringing switch reduces noise and EMI. In the shutdown mode, the current

consumption is reduced to less than 1

µA. The TPS6200x is available in the 10-pin (DGS) microsmall outline

package (MSOP). The devices operate over a junction temperature range of −40

°C to 125°C.

0

10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

1000

EFFICIENCY

vs

LOAD CURRENT

IO − Load Current − mA

VI = 3.6 V,

VO = 2.5 V

Figure 1

1

8

6

7

32

9

5

10

4

10

µH

EN

ILIM

SYNC

GND

FC

PG

PGND

FB

L

TPS6200x

†

10

µF

PG

0.1

µF

10

µF

to 5.5 V

† With VO ≥1.8 V; Co = 10 µF, VO <1.8 V; Co = 47 µF

Figure 2. Typical Application Circuit for Fixed

Output Voltage Option

SYNC = Low

SYNC = High

1

2

3

4

5

10

9

8

7

6

MSOP (DGS) PACKAGE

(TOP VIEW)

FC

GND

PG

FB

PGND

L

EN

SYNC

ILIM