24-pin (PWP) package image


1-A, dual-channel ultra-low-dropout voltage regulator with power good & enable

Same as: TPS70302PWPG4 This part number is identical to the part number listed above. You can only order quantities of the part number listed above.


Qty Price

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

TPS70302PWPR ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 2,000 | LARGE T&R
Qty | Price 1ku | +

Quality information

Rating Catalog
RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location

Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins HTSSOP (PWP) | 24
Operating temperature range (°C) -40 to 125
Package qty | Carrier 60 | TUBE

Features for the TPS703

  • Dual Output Voltages for Split-Supply Applications
  • Independent Enable Functions (See Part Number TPS704xx
    for Independent Enabling of Each Output)
  • Output Current Range of 1 A on Regulator 1 and 2A on Regulator 2
  • Fast Transient Response
  • Voltage Options: 3.3 V/2.5 V, 3.3 V/1.8 V, 3.3 V/1.5 V, 3.3 V/1.2 V,
    and Dual Adjustable Outputs
  • Open Drain Power-On Reset with 120 ms Delay
  • Open Drain Power Good for Regulator 1
  • Ultralow 185 µA (typ) Quiescent Current
  • 2 µA Input Current During Standby
  • Low Noise: 78 µVRMS Without Bypass Capacitor
  • Quick Output Capacitor Discharge Feature
  • Two Manual Reset Inputs
  • 2% Accuracy Over Load and Temperature
  • Undervoltage Lockout (UVLO) Feature
  • 24-Pin PowerPAD™ TSSOP Package
  • Thermal Shutdown Protection

PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Description for the TPS703

The TPS703xx family of devices is designed to provide a complete power management solution for TI DSP, processor power, ASIC, FPGA, and digital applications where dual output voltage regulators are required. Easy programmability of the sequencing function makes this family ideal for any TI DSP application with power sequencing requirements. Differentiated features, such as accuracy, fast transient response, SVS supervisory circuit (power-on reset), manual reset inputs, and enable function, provide a complete system solution.

The TPS703xx family of voltage regulators offers very low dropout voltage and dual outputs with power up sequence control, designed primarily for DSP applications. These devices have low noise output performance without using any added filter bypass capacitors, and are designed to have a fast transient response and be stable with 47 µF low ESR capacitors.

These devices have fixed 3.3 V/2.5 V, 3.3 V/1.8 V, 3.3 V/1.5 V, 3.3 V/1.2 V, and adjustable voltage options. Regulator 1 can support up to 1 A, and regulator 2 can support up to 2 A. Separate voltage inputs allow the designer to configure the source power.

Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low (typically 160mV on regulator 1) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (maximum of 250 µA over the full range of output current). This LDO family also features a sleep mode; applying a high signal to EN (enable) shuts down both regulators, reducing the input current to 1 µA at TJ = +25°C.

The device is enabled when the EN pin is connected to a low-level input voltage. The output voltages of the two regulators are sensed at the VSENSE1 and VSENSE2 pins respectively.

The input signal at the SEQ pin controls the power-up sequence of the two regulators. When the device is enabled and the SEQ terminal is pulled high or left open, VOUT2 turns on first and VOUT1 remains off until VOUT2 reaches approximately 83% of its regulated output voltage. At that time VOUT1 is turned on. If VOUT2 is pulled below 83% (that is, in an overload condition) of its regulated voltage, VOUT1 is turned off. Pulling the SEQ terminal low reverses the power-up order and VOUT1 is turned on first. The SEQ pin is connected to an internal pull-up current source.

For each regulator, there is an internal discharge transistor to discharge the output capacitor when the regulator is turned off (disabled).

The PG1 pin reports the voltage condition at VOUT1. The PG1 pin can be used to implement an SVS (POR, or power-on reset) for the circuitry supplied by regulator 1.

The TPS703xx features a RESET (SVS, POR, or power-on reset). RESET is an active low, open drain output and requires a pull-up resistor for normal operation. When pulled up, RESET goes to a high impedance state (that is, logic high) after a 120 ms delay when all three of the following conditions are met. First, VIN1 must be above the undervoltage condition. Second, the manual reset (MR) pin must be in a high impedance state. Third, VOUT2 must be above approximately 95% of its regulated voltage. To monitor VOUT1, the PG1 output pin can be connected to MR1 or MR2. RESET can be used to drive power-on reset or a low-battery indicator. If RESET is not used, it can be left floating.

Internal bias voltages are powered by VIN1 and require 2.7V for full functionality. Each regulator input has an undervoltage lockout circuit that prevents each output from turning on until the respective input reaches 2.5 V.


Qty Price

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

TPS70302PWPR ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 2,000 | LARGE T&R
Qty | Price 1ku | +

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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