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TPS61258YFFR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS61258YFFR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 34 page A1 A2 A3 B2 C2 B3 C3 B1 C1 A1 A2 A3 B2 C2 B3 C3 B1 C1 BOTTOM VIEW TOP VIEW Undervoltage Lockout Thermal Shutdown Softstart Control Logic PMOS Valley Current Sense V REF VOUT GND SW VIN NMOS Modulator BP EN TPS61253, TPS61254, TPS61256, TPS61258 SLVSAG8B – SEPTEMBER 2011 – REVISED MAY 2012 www.ti.com PIN ASSIGNMENTS Table 1. TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. This is the mode selection pin of the device and is only of relevance when the device is disabled (EN = Low). This pin must not be left floating and must be terminated. Refer to Table 3 for more details. BP C3 I BP = Low: The device is in true shutdown mode. BP = High: The output is biased at the input voltage level with a maximum load current capability of ca. 150mA. In standby mode, the device only consumes a standby current of 22µA (typ). This is the enable pin of the device. Connecting this pin to ground forces the device into shutdown EN B3 I mode. Pulling this pin high enables the device. This pin must not be left floating and must be terminated. GND C1, C2 Ground pin. SW B1, B2 I/O This is the switch pin of the converter and is connected to the drain of the internal Power MOSFETs. VIN A3 I Power supply input. VOUT A1, A2 O Boost converter output. FUNCTIONAL BLOCK DIAGRAM 6 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Link(s): TPS61253 TPS61254 TPS61256 TPS61258 |
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