TPS657120 Datasheet, PDF (1/63 Pages) Texas Instruments – PMU for Baseband and RF-PA Power

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TPS657120
SLVSBO3A – DECEMBER 2013 – REVISED DECEMBER 2015
TPS657120 PMU for Baseband and RF-PA Power
1 Device Overview
1.1 Features
1
• 3 Step-Down Converters:
– V_IN Range From 2.8 V to 5.5 V
– Power Save Mode at Light Load Current
– Output Voltage Accuracy in PWM Mode ±2%
– Typical 16-μA Quiescent Current per DCDC1
and DCDC2 Converter
– Typical 26-μA Quiescent Current for DCDC3
Converter
– Dynamic Voltage Scaling
– 100% Duty Cycle for Lowest Dropout
• 2 LDOs:
– 2 × 10-mA Output Current
– Low Noise RF-LDOs
– Output Voltage Range 1.2 V to 3.4 V
– 32-μA Quiescent Current
– Pre-Regulation Support by Separate Power
Inputs
– ECO mode
– V_IN Range of LDOs:
• LDO1: 2.0 V to 5.5 V
• LDO2: 2.8 V to 5.5 V
• 2 GPIOs
• Thermal Shutdown
• Bypass Switch
– Used with DCDC3 Powering an RF-PA
• Interface
– 26 MHz-MIPI RFFE Interface
• Undervoltage Lockout
• Flexible Power-Up and Power-Down Sequencing
• 2.5-mm × 2.3-mm DSBGA Package with 0.4-mm
Pitch
1.2 Applications
• Data Cards
• Smartphones
1.3 Description
The TPS657120 provides three configurable step-down converters with up to 2-A output current.This
device also has 2 LDO regulators. LDO1 can be supplied from either the input voltage directly or from a
pre-regulated supply such as DCDC1 or DCDC2. The input voltage to LDO2 is used as an analog supply
input and therefore must be tied to the input voltage at the same voltage level with VINDCDC1/2 and
VINDCDC3. The internal power-up and power-down controller is configurable and can support any power-
up/power-down sequences (OTP based). All LDOs and DCDC converters are controllable by a MIPI RFFE
compatible interface, by pins PWRON, CLK_REQ1 and CLK_REQ2, or both. In addition, there is a
nRESET as well as a RFFE address select (ADR_SELECT) input which can alternatively be used as
general purpose I/Os with a 1-mA sink capability. The TPS657120 comes in a 6-ball × 5-ball DSBGA
package (2.5 mm × 2.3 mm) with a 0.4-mm pitch.
PART NUMBER
Device Information⁽¹⁾
PACKAGE
TPS657120
DSBGA (30)
(1) For all available packages, see the orderable addendum at the end of the datasheet.
BODY SIZE (NOM)
2.31 mm × 2.51 mm
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.