Datasheet Texas Instruments LM2991 MD8 — 数据表

LM2991QML
www.ti.com SNVS392A – MARCH 2006 – REVISED OCTOBER 2011 LM2991QML Negative Low Dropout Adjustable Regulator
Check for Samples: LM2991QML FEATURES DESCRIPTION 1 2 Output Voltage Adjustable From -2V to -25V
Output Current in Excess of 1A
Dropout Voltage Typically 0.6V at 1A Load
Low Quiescent Current
Internal Short Circuit Current Limit
Internal Thermal Shutdown with Hysteresis
TTL, CMOS Compatible ON/OFF Switch
Functional Complement to the LM2941 Series APPLICATIONS Post Switcher Regulator
Local, On-card, Regulation
Battery Operated Equipment The LM2991 is a low dropout adjustable negative
regulator with a output voltage range between -2V to
-25V. The LM2991 provides up to 1A of load current
and features a On /Off pin for remote shutdown
capability.
The LM2991 uses new circuit design techniques to
provide a low dropout voltage, low quiescent current
and low temperature coefficient precision reference.
The dropout voltage at 1A load current is typically
0.6V and a ensured worst-case maximum of 1V over
the entire operating temperature range. The
quiescent current is typically 1 mA with a 1A load …