G5ULM2596 データシートの表示（PDF） - GTM CORPORATION
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G5ULM2596 Datasheet PDF : 8 Pages
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Block Diagram
FEEDBACK
ISSUED DATE :2005/04/15
REVISED DATE :2006/06/26B
Pin Function
Pin Name
+VIN
Output
Ground
Feedback
ON/OFF
Pin#
1
2
3
4
5
Function
This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor
must be present at this pin to minimize voltage transients and to supply the switching current
needed by regulator.
Internal switch. The voltage at this pin switches between (+VIN – VSAT) and approximately -0.5V,
with a duty cycle of approximately VOUT/VIN. To minimize coupling to sensitive circuit, the PC board
copper area connected to this pin should be keep to a minimum.
Circuit ground
Senses the regulated output voltage to complete the feedback loop
Allows the switching regulator circuit to be shutdown using logic level signals thus dropping the
total input supply current to approximately 80 A. Pulling this pin below a threshold voltage of
approximately 1.3V turns the regulator on, and pulling this pin above 1.3V (up to a maximum of
25V) shuts the regulator down. If this shutdown feature is not needed, ON/OFF pin can be wired to
the ground pin or it can be left open, in either case the regulator will be in the ON condition.
Absolute Maximum Ratings (Note1)
Parameter
Maximum Supply Voltage
ON/OFF pin input Voltage
Feedback pin Voltage
Output Voltage to ground (steady state)
Power dissipation
Storage Temperature
Maximum junction temperature
Minimum ESD rating (C=100pF, R=1.5k )
Lead temperature (soldering, 10seconds)
Operating Ratings
Temperature range
Supply Voltage
Parameter
Ratings
Unit
45
V
-0.3 V +25
V
-0.3 V +25
V
-1
V
Internally Limited
-65 ~ +150
+150
2k
V
+260
Ratings
Unit
-40 TJ +125
4.5 ~ 40
V
G5ULM2596
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