The TPS62410 device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3 V or 5 V voltage rail.
With an input voltage range of 2.5 V to 6 V, the TPS62410 is ideal for battery powered portable applications like smart phones, PDAs, and other portable equipment.
With the EasyScale™ serial interface, the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low-power DSP and processors.
The TPS62410 operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 μA. The device allows the use of small inductors and capacitors to achieve a small solution size.
The TPS62410 operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 × 3 mm VSON)
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS62410 | VSON (10) | 3.00 mm × 3.00 mm |
Changes from * Revision (February 2007) to A Revision
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | NO. | |||
ADJ2 | 1 | I | Input to adjust output voltage of converter 2. In adjustable version (TPS62410) connect an external resistor divider between VOUT2, this pin and GND to set output voltage between 0.6 V and VIN. If EasyScale™ interface is used for converter 2, this pin must be directly connected to the output. | |
MODE/DATA | 2 | I | This Pin has 2 functions:
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VIN | 3 | I | Supply voltage, connect to VBAT, 2.5 V to 6 V | |
FB1 | 4 | I | Direct feedback voltage sense input of converter 1, connect directly to VOUT1. An internal feed forward capacitor is connected between this pin and the error amplifier. In case of fixed output voltage versions or when the Interface is used, this pin is connected to an internal resistor divider network. | |
DEF_1 | 5 | I/O | This pin defines the output voltage of converter 1. The pin acts in TPS62410 as an analog input for output voltage setting through external resistors. In fixed default output voltage versions this pin is a digital input to select between two fixed default output voltages. | |
In TPS62410 an external resistor network needs to be connected to this pin to adjust the default output voltage. | ||||
SW1 | 6 | — | Switch pin of converter1. Connected to inductor 1 | |
EN1 | 7 | I | Enable input for converter1, active high | |
GND | 8 | I | GND for both converters, this pin should be connected with the PowerPAD | |
EN2 | 9 | I/O | Enable input for converter 2, active high | |
SW2 | 10 | — | Switch pin of converter 2. Connected to inductor 2 | |
PowerPAD™ | — | — | Connect to GND |