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PDF LM1501A Data sheet ( Hoja de datos )
| Número de pieza | LM1501A | |
| Descripción | Step-down Switching Regulator | |
| Fabricantes | HTC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LM1501A (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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5.0A, 150kHz, Step-down Switching Regulator
LM1501A
FEATURES
z 3.3V, 5V, 12V, and adjustable output versions
z Adjustable version output voltage range, 1.23V to 37V
± 3% max over line and load conditions
z Guaranteed 5A output load current
z Input voltage range up to 40V
z Requires only 4 external components
z 150kHz ±15% fixed frequency internal oscillator
z Excellent line and Load regulation specifications
z Low power standby mode, IQ typically 80uA
z Thermal shutdown and current limit protection
TO-263 PKG
TO-220 PKG
APPLICATION
z Simple high-efficiency step-down regulator
z On-card switching regulators
z Positive to negative converter
DESCRIPTION
Ordering Information
Device(Marking)
PKG
LM1501AR-X.X
TO-263 5L
LM1501AT-X.X
TO-220 5L
X.X = Output Voltage = 3.3, 5.0, 12, ADJ
The LM1501A series of regulators are monolithic integrated circuits that provide all the active functions for a
step-down switching regulator, capable of driving a 5A load with excellent line and load regulation. These
devices are available in fixed output voltages of 3.3V, 5V, 12V and an adjustable output version. Requiring a
minimum number of external components, these regulators are simple to use. The LM1501A series operates at
a switching frequency of 150kHz. Available in standard 5-lead TO-263 and TO-220 package.
Other features include a guaranteed ± 3% tolerance on output voltage under specified input voltage and
output load conditions, and ± 15% on the oscillator frequency. External shutdown is included, featuring typically
80uA standby current. Self protection features include a current limit for output switch and an over temperature
shutdown for complete protection under fault conditions. The over temperature shutdown level is about 145℃
with 5℃ hysteresis.
Absolute Maximum Ratings (TA = 25oC) (Note 1)
Characteristic
Symbol
Value
Unit
Maximum Input Supply Voltage
ON/OFF Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground
Power Dissipation
Storage Temperature Range
Operating Temperature Range
ESD Susceptibility (Human Body Model)
Operating Supply Voltage
VI
VIN
VFB
VO
PD
Tstg
TJ
VESD
VIN
45
-0.3 ≤ V ≤ +25
-0.3 ≤ V ≤ +25
-1
Internally limited
-65 to +150
-40 ≤ TJ ≤ +125
2
4.5 to 45
V
V
V
V
W
oC
oC
kV
V
Note 1. Absolute Maximum Rating indicate limits beyond which damage to device may occur. Operating Ratings indicate conditions for which
the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see
the Electrical Characteristics.
Mar. 2011 – Ver. 1.3
1
HTC
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet LM1501A.PDF ] | |
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