Datasheet
SGLS243A − APRIL 2004 − REVISED JUNE 2008
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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 − %
EFFICIENCY
vs
LOAD CURRENT
I
O
− Load Current − mA
V
I
= 3.6 V,
V
O
= 2.5 V
Figure 1
V
IN
1
8
6
7
32
9
5
10
4
10 µH
EN
ILIM
SYNC
GND FC
PG
PGND
FB
L
TPS6200x
†
10 µF
V
O
= 0.8
V
to V
I
PG
0.1 µF
10 µF
V
I
= 2 V
to 5.5 V
†
With V
O
≥1.8 V; C
o
= 10 µF, V
O
<1.8 V; C
o
= 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)
V
IN
FC
GND
PG
FB
PGND
L
EN
SYNC
ILIM