LTC1696HS6 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1696HS6 Datasheet PDF : 14 Pages
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LTC1696
TYPICAL APPLICATION
External Triggering
The LTC1696 has a feature which allows the output to
be latched into an active high state by pulling the TIMER/
RESET pin high even if both the feedback voltages at the
FB1 and FB2 pins are below the trip threshold of the in-
ternal comparator. The output is then reset by pulling the
TIMER/RESET pin low. Figure 4 shows a circuit that uses
the external triggering function of the LTC1696
R2
38.3k
1%
1.5V
R1
44.2k
1%
1
FB1
TIMER/ 6
RESET
LTC1696
2
GND
5
FB2
VCC
3.3V
3
VCC
4
OUT
C2
0.1µF
5V
D1
R5
1N4148
6.8k
5%
C1
1nF
Q2
2N7002
R4
54.9k
1%
R3
44.2k
1%
RESET
Q3
2N7002
1.8V
TRIGGER
PRIMARY
INPUT
SUPPLY
POWER MANAGEMENT
CONTOLLER
N-CHANNEL
×2
Q1
2N7002
1696 F04
Figure 4. External Triggering
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60V, Low IQ, Dual 2-Phase Synchronous Step-Down DC/DC
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Phase-Lockable Fixed Frequency 50kHz to 900kHz
4V ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 24V, IQ = 50μA
Dual, Multiphase, Synchronous Step-Down DC/DC Controller PLL Fixed Frequency 250kHz to 770kHz,
with Diff Amp and DCR Temperature Compensation
4.5V≤ VIN ≤ 38V, 0.8V ≤ VOUT ≤ 12V
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Amp and Tri-State Output Drive
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Value DCR Sensing and Temperature Compensation
0.6V ≤ VOUT ≤ 5V, 4mm x 4mm QFN-24, TSSOP-24E
Sub Milli Ohm Current Mode Synchronous Step-Down
Controller with Remote Sense
PLL Fixed Frequency 250kHz to 750kHz, 4V≤ VIN ≤ 38V
0.6V ≤ VOUT ≤ 5V, 6mm x 6mm QFN-40
Forward No Opto Synchronous Controller Chip Set
with Active Clamp Reset
Direct Flux Limit, Supports Self Starting Secondary Forward Control
LTC3722/
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Adaptive or Manual Delay Control for Zero Voltage Switching,
Adjustable Synchronous Rectification Timing
14 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 950Fo3r5m-7o4re1i7nformation www.linear.com/LTC1696
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC1696
1696fb
LT 1214 REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2001
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