Datasheet

2.2 Fm
VLDO1
LDO1
200mA
FB2
1.5 Hm
L2
DCDC2
400mA
TPS65708
Vout2
Vout3
FB1
1.5 Hm
L1
DCDC1
400mA
10 Fm
Vout1
VIN1
VIN2
PGND1
PGND2
VCC
MODE
VLDO2
LDO2
200mA
Vout4
V(USB)
PWM ISINK
VINLDO1
VINLDO2
10 Fm
2.2 Fm
TPS65708
www.ti.com
SLVSAE1A OCTOBER 2010 REVISED FEBRUARY 2011
PMU for Embedded Camera Module
Check for Samples: TPS65708
1
FEATURES
DESCRIPTION
Two 400mA Step-Down Converters
Up to 95% Efficiency
TPS65708 is a power management unit targeted for
embedded camera modules or other portable
V
IN
Range for DCDC Converters From
low-power consumer end equipment. It contains two
3.6V to 6V
high-efficiency step-down converters, two low-dropout
2.25MHz Fixed Frequency Operation
linear regulators, and a 7.5mA current sink for driving
Power Save Mode at Light Load Current a LED. The 2.25MHz step-down converter enters a
low-power mode at light load for maximum efficiency
Output Voltage Accuracy in PWM mode ±1.5%
across the widest possible range of load currents. For
100% Duty Cycle for Lowest Dropout
low-noise applications, the devices can be forced into
180° Out of Phase Operation
fixed frequency PWM mode using the MODE pin. The
device allows the use of small inductors and
2 General Purpose 200mA LDOs
capacitors to achieve a small solution size.
LDOs Optionally Powered From Step-Down
TPS65708 provides an output current of up to 400mA
Converters
on both DCDC converters and up to 200mA on each
7.5mA PWM Dimmable Current Sink
of the LDOs. The enable signal to the dcdc
converters and LDOs is generated internally by the
Available in a 16-Ball WCSP with 0.5mm Pitch
undervoltage lockout circuit.
APPLICATIONS
The TPS65708 comes in a small 16-ball wafer
chip-scale package (WCSP) with 0.5mm ball pitch.
Monitors
Laptops
Handheld Equipment
APPLICATION CIRCUIT
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
© 20102011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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