Datasheet

VLDO1
A1
VINLDO1
A2
VINLDO2
A3
VLDO2
A4
VIN1
C1
PWM
B2
MODE
B3
VIN2
C4
PGND1
D1
FB1
C2
FB2
C3
PGND2
D4
L1
D2
ISINK
B1
L2
D3
A1
A2
A3
A4
Vcc
B4
TPS65708
SLVSAE1A OCTOBER 2010 REVISED FEBRUARY 2011
www.ti.com
PIN ASSIGNMENTS
YZH PACKAGE
(BOTTOM VIEW)
Pin Functions for Chip Scale Version (YZH Package)
PIN
I/O DESCRIPTION
NAME NO.
VCC B4 I Supply Input for internal reference, has to be connected to VIN1 and VIN2
PGND1 D1 Power ground
PGND2 D4 Power ground
VIN1 C1 I Input voltage pin for buck converter
(1)
VIN2 C4 I Input voltage pin for buck converter
(2)
L1 D2 O Switch output from buck converter
(1)
FB1 C2 I Feedback input from buck converter
(1)
L2 D3 O Switch output from buck converter
(2)
FB2 C3 I Feedback input from buck converter
(2)
VLDO1 A1 O Output voltage from LDO1
VLDO2 A4 O Output voltage from LDO2
VINLDO1 A2 I Input voltage pin for LDO1
VINLDO2 A3 I Input voltage pin for LDO2
Set low to enable Power Save Mode. Pulling this PIN to high forces the device to operate in PWM mode
MODE B3 I
over the whole load range.
ISINK B1 O Open drain current sink; connect to the cathode of a LED
PWM B2 I Input for LED PWM dimming
(1) VCC must be the highest input voltage for the device to operate correctly.
(2) VIN1/VIN2 must be connected to VCC
6 Submit Documentation Feedback © 20102011, Texas Instruments Incorporated
Product Folder Link(s) :TPS65708