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Teilenummer | GS-R12P |
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Beschreibung | STEP-DOWN SWITCHING REGULATOR FAMILY | |
Hersteller | ST Microelectronics | |
Logo | ||
Gesamt 7 Seiten www.DataSheet4U.com
GS-R12P
1.8W TO 8W STEP-DOWN SWITCHING REGULATOR FAMILY
FEATURE
■ MTBF 1 000 000 hours (Tamb=25)C)
■ 1.5A max output current
■ 16V max input voltage
■ 1.5V max drop-out voltage
■ Remote logic inhibit/enable
■ Not-latching overload and short circuit
protection
■ Thermal shutdown
■ Fixed or adjustable output
■ No heatsink required
PRELIMINARY
DESCRIPTION
The GS-R12P series is a family of high efficiency
step down switching voltage regulator, designed to
replace linear regulators.
Based on STM L5973 device, this non isolated family
of regulators are suitable for the full spectrum of ap-
plications including telecom, industry, computer and
distributed power system applications having a wide-
ly ranging input voltage.
Packing type: V = vertical PTH
Packing type: H = horizontal PTH
-------------------S = horizontal SMD
June 2004
This is preliminary information on a new product now in development. Details are subject to change without notice.
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GS-R12P
Loop compensation (GS-R12H(S)0001.5 only)
If required by particular load conditions, it is possible to change the feedback loop compensation, adding an ex-
ternal capacitor between pin 6 (FB) and pin 5 (Vout-c), which will act as speed up (see figure 2).
ADDITIONAL FEATURES AND PROTECTIONS
Feedback disconnection
In case of feedback disconnection, the duty cycle increases versus the maximum allowed value, bringing the
output voltage close to the input supply.
THis condition could destroy the load.
To avoid this dangerous condition, the device is turned off if the internal feedback pin remains floating.
Output overvoltage protection
The overvoltage protection, OVP, is realized by using an internal comparator, which input is connected to the
feedback, that turns off the power stage when the OVP threshold is reached.
This threshold is typically 30% higher than the feedback voltage.
Figure 1
Figure 2
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6 Page | ||
Seiten | Gesamt 7 Seiten | |
PDF Download | [ GS-R12P Schematic.PDF ] |
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