TPS65030

1.5V

CP+LDO

(200mA)

3.3V

CP+LDO

(22mA)

5V

CP

(100mA)

VIN

1.8V

LDO

(60mA)

SW_EN1

SW_EN2

Vbus−

comparator

EN1

EN2

EN3

+

−

SLEEP

TPS65030

www.ti.com

SLVS620C – JULY 2007 – REVISED SEPTEMBER 2015

Functional Block Diagrams (continued)

Figure 5. Internal Block Diagram

7.3 Feature Description

7.3.1 Enable (EN1, EN2, EN3)

There are three different enable signals available. EN1 activates the 5-V converter associated with Vbus if it is

pulled high. EN2 is associated with the 3.3-V converter (Vout2) and the 1.5-V converter (Vout3). If EN2 is pulled

high, the 3.3-V ramps up first, followed by the 1.5-V converter, see Figure 6. EN3 enables the 1.8-V LDO (Vout4)

if pulled high. For EN3, there is an internal pulldown resistor to GND, disabling the Vout4-LDO if the EN3 pin is

left open.

Copyright © 2007–2015, Texas Instruments Incorporated

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