Datasheet
SLVS354A − FEBRUARY 2001 − REVISED SEPTEMBER 2001
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
The devices operate in the newly developed LinSkip mode. In this operating mode, the device 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 threshold of about 7 mA. Even in pulse-skip
mode, the output ripple is maintained at a very low level because the output resistance of the charge pump is
still regulated.
Three operating modes can be programmed using the EN pin. EN = low disables the device, shuts down all
internal circuits, and disconnects the output from the input. EN = high enables the device and programs it to run
from the internal oscillator. The devices operate synchronized to an external clock signal if EN is clocked; thus,
switching harmonics can be controlled and minimized. 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.
Device options with either a low-battery or power good detector are available. This dc/dc converter requires no
inductors, therefore, EMI of the system is reduced to a minimum. It is available in the small 10-pin MSOP
package (DGS).
ACTUAL SIZE
3,05 mm x 4,98 mm
1
2
3
4
5
10
9
8
7
6
LBI
GND
C1−
C1+
OUT
LBO
EN
C2−
IN
C2+
TPS60204
1
2
3
4
5
10
9
8
7
6
GND
GND
C1−
C1+
OUT
PG
EN
C2−
IN
C2+
TPS60205
DGS PACKAGES
AVAILABLE OPTIONS
T
A
PART NUMBER
†
MARKING
DGS
PACKAGE
OUTPUT
CURRENT
(mA)
OUTPUT
VOLTAGE
(V)
DEVICE FEATURES
−40°C to 85°C
TPS60204DGS AFB 100 3.3 Low-battery detector
−40
°
C to 85
°
C
TPS60205DGS AFC 100 3.3 Power-good detector
†
The DGS package is available taped and reeled. Add R suffix to device type (e.g., TPS60204DGSR) to order
quantities of 2500 devices per reel.