TPS657051_15 Datasheet, PDF (1/26 Pages) Texas Instruments – PMU for Embedded Camera Module

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TPS657051, TPS657052
SLVSA08A – FEBRUARY 2010 – REVISED SEPTEMBER 2015
TPS65705x PMU for Embedded Camera Module
1 Features
•1 Two 400-mA Step-Down Converters
• Up to 92% Efficiency
• V_IN Range for DC-DC Converter
From 3.3 V to 6 V
• 2.25-MHz Fixed-Frequency Operation
• Power Save Mode at Light Load Current
• Output Voltage Accuracy in PWM Mode ±1.5%
• 100% Duty Cycle for Lowest Dropout
• 180° Out-of-Phase Operation
• 1 General Purpose 200-mA LDO
• V_IN Range for LDO From 1.7 V to 6.0 V
• Available in a 16-Ball DSBGA (WCSP) With 0.5-
mm Pitch
2 Applications
• Digital Cameras
• Portable Media Players
• Handheld Equipment
3 Description
The TPS65705x devices are small power
management units targeted for embedded camera
module or other portable low-power consumer-end
equipments. The device contains two highly efficient
step-down converters, a low dropout linear regulator,
and additional supporting functions. The 2.25-MHz
step-down converter enters a low-power mode at light
load for maximum efficiency across the widest
possible range of load currents. For low-noise
applications, the device can be forced into fixed-
frequency PWM mode using the MODE pin. The
device allows the use of small inductors and
capacitors to achieve a small sized solution. The
TPS65705x provides an output current of up to
400 mA on both DC-DC converters and integrates
one 200-mA LDO with different output settings. The
LDO operates with an input voltage range from 1.7 V
to 6 V, thus allowing it to be supplied from the output
of the step-down converter or directly from the
system voltage.
The TPS65705x comes in a small 16-pin wafer chip
scale package (WCSP) with 0.5-mm ball pitch.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS657051
TPS657052
DSBGA (16)
2.08 mm × 2.08 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Application Circuit
10 mF
VCC
VIN1
MODE
EN1
PGND
VIN2
EN2
PGND
TPS 657051/52
DCDC1
400 mA
2.2 μH
L1
FB1
CLK0°
2.25 MHz
Oscillator
CLK180°
DCDC2
400 mA
2.2 μH
L2
FB2
10uF
10 mF
Vout1
Vout2
VINLDO
ENLDO
AGND
LDO
200 mA
VLDO
Vout3
2.2 mF
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.