LT3695EMSE#PBF Linear Technology, LT3695EMSE#PBF Datasheet - Page 23

• Manufacturer Part Number: LT3695EMSE#PBF
• Description: IC SWIT REG BUCK 1A ADJ 16MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3695EMSE#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 20 V
• Current - Output: 1A
• Frequency - Switching: 250kHz ~ 2.2MHz
• Voltage - Input: 3.6 ~ 36 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-MSOP Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

APPLICATIONS INFORMATION
Table 5: Effects of Pin Shorts
PINS
PGND-DA
SW-RUN/SS
RUN/SS-RT
RT -SYNC
SYNC-V
PG-GND
GND-BD (LT3695)
BD-BOOST (LT3695)
GND-OUT2
(LT3695-3.3, LT3695-5)
Table 6: Effects of Floating Pins
PIN
PGND
DA
SW
RUN/SS
RT
SYNC
V
V
FB (LT3695)
PG
GND
BD (LT3695)
OUT1, OUT2
(LT3695-3.3, LT3695-5)
BOOST
IN
C
IN
EFFECT
No effect if V
The result of this short depends on the load resistance and on R3 (Figure 10). See the following discussion.
No effect or V
No effect or V
No effect if V
No effect.
V
grounds the voltage source supplying BD. Make sure it is safe to short the supply for BD to ground. For this reason BD should
not be connected to V
If diode D2 (see Figure 10) is used, no effect or V
V
may increase.
EFFECT
No effect if the Exposed Pad is soldered.
Otherwise: V
and provide a bypass resistor at the DA pin. See the following discussion.
V
a bypass resistor. See the following discussion.
V
V
V
V
fl oating SYNC pin is sensitive to noise which can degrade device performance.
V
V
performance. The output voltage ripple will increase if the part becomes unstable.
V
No effect.
Output maintains regulation, but potential degradation of device performance.
V
switch cannot saturate properly, which increases its power dissipation.
No effect.
V
switch cannot saturate properly, which increases its power dissipation.
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
may fall below regulation voltage, power dissipation of the power switch will be increased. Note that this short also
will fall below regulation voltage, because this shorts the output to ground. As a result, the power dissipation of the part
may fall below regulation voltage. Make sure that V
will fall below regulation voltage.
will fall below regulation voltage.
will fall below regulation voltage.
may fall below regulation voltage. A fl oating SYNC pin confi gures the LT3695 for pulse-skipping mode. However, a
will fall below regulation voltage.
may fall below regulation voltage. Disconnecting the V
will fall below regulation voltage.
may fall below regulation voltage. If BD is not connected, the boost capacitor cannot be charged and thus the power
may fall below regulation voltage. If BOOST is not connected, the boost capacitor cannot be charged and thus the power
IN
IN
OUT
OUT
OUT
< V
does not exceed the absolute maximum voltage of SYNC (20V).
may fall below regulation voltage. Make sure that V
will fall below regulation voltage if I
will fall below regulation voltage if the current into the RT pin is less than 1mA.
IN(MAX)
IN
, but it is safe to connect it to V
. See Input Voltage Range section for description of V
OUT
R3
may fall below regulation voltage. Otherwise the device may be damaged.
OUT
(Figure 10) < 1mA.
IN
.
< V
C
pin alters the loop compensation and potentially degrades device
IN(MAX)
IN
(see Input Voltage Range section for details) and provide
< V
IN(MAX)
IN(MAX)
(see Input Voltage Range section for details)
.
LT3695 Series
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