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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP3907 датащи(PDF) 5 Page - Texas Instruments |
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LP3907 датащи(HTML) 5 Page - Texas Instruments |
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5 / 57 page  XY SJFB = = Product Identification = 2 Digit Date Code = Pin1A TT Die Traceability XYTT SJFB 5 4 3 2 1 E D C B A EN_ LDO2 EN_ SW2 VIN1 SW1 VIN LDO12 VIN LDO2 GND_S W1 FB1 EN_S W1 EN_T VIN LDO12 LDO2 AVDD GND_C nPOR EN_ LDO1 FB2 SDA SCL LDO1 VIN2 SW2 GND_ SW2 GND_ L VIN LDO1 LP3907 www.ti.com SNVS511N – JUNE 2007 – REVISED AUGUST 2011 Figure 5. Bottom View Figure 6. Package Mark - Top View Package Type Default I2C Address 24-lead LLP 60 25-bump micro SMD 61 Table 2. Pin Descriptions LLP Pin micro SMD Name I/O Type Description No. pin no. 1 B4, B5 VINLDO12 I PWR Analog Power for Internal Functions (VREF, BIAS, I2C, Logic) 2 C4 EN_T I D Enable for preset power on sequence. (See page 22.) 3 C3 nPOR O D nPOR Power on reset pin for both Buck1 and Buck 2. Open drain logic output 100K pullup resistor. nPOR is pulled to ground when the voltages on these supplies are not good. See nPOR section for more info. 4 C5 GND_SW1 G G Buck1 NMOS Power Ground 5 D5 SW1 O PWR Buck1 switcher output pin 6 E5 VIN1 I PWR Power in from either DC source or Battery to Buck1 7 D4 ENSW1 I D Enable Pin for Buck1 switcher, a logic HIGH enables Buck1 8 E4 FB1 I A Buck1 input feedback terminal 9 D3 GND_C G G Non switching core ground pin 10 E3 AVDD I PWR Analog Power for Buck converters 11 E2 FB2 I A Buck2 input feedback terminal 12 D2 ENSW2 I D Enable Pin for Buck2 switcher, a logic HIGH enables Buck2 13 E1 VIN2 I PWR Power in from either DC source or Battery to Buck2 14 D1 SW2 O PWR Buck2 switcher output pin 15 C1 GND_SW2 G G Buck2 NMOS Power ground Copyright © 2007–2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LP3907 |
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