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LP3972 Datasheet(PDF) 9 Page - National Semiconductor (TI) |
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LP3972 Datasheet(HTML) 9 Page - National Semiconductor (TI) |
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9 / 59 page  General Electrical Characteristics Typical values and limits appearing in normal type apply for TJ = 25˚C. Limits appearing in boldface type apply over the entire junction temperature range for operation, −40˚C to +125˚C. (Notes 2, 6) (Continued) Default Voltage Option (Notes 2, 5) Version LP3972SQ-A514 LP3972SQ-A413 Enable Version A Version A LDO_RTC — 2.8 — 2.8 LDO1 SYS_EN 1.8 SYS_EN 1.8 LDO2 SYS_EN 1.8D SYS_EN 1.8D LDO3 SYS_EN 3D SYS_EN 3D LDO4 SYS_EN 3D SYS_EN 2.8D LDO5 PWR_EN 1.4 PWR_EN 1.4 BUCK1 PWR_EN 1.4 PWR_EN 1.4 BUCK2 SYS_EN 3.3 SYS_EN 3 BUCK3 SYS_EN 1.8 SYS_EN 1.8 Version LP3972SQ-E514 LP3972SQ-I514 Enable Version E Version I LDO_RTC — 2.8 — 2.8 LDO1 SYS_EN 1.8 SYS_EN 1.8 LDO2 SYS_EN 1.8E SYS_EN 1.8E LDO3 SYS_EN 3D SYS_EN 3E LDO4 SYS_EN 3D SYS_EN 3E LDO5 PWR_EN 1.4 PWR_EN 1.4 BUCK1 PWR_EN 1.4 PWR_EN 1.4 BUCK2 SYS_EN 3.3 SYS_EN 3.3 BUCK3 SYS_EN 1.8 SYS_EN 1.8 Note:E= Regulator is ENABLED during startup D = Regulator is DISABLED during startup www.national.com 9 |
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