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LTC3736EGN Datasheet(PDF) 2 Page - Linear Technology

Part # LTC3736EGN
Description  Dual 2-Phase, No RSENSE Synchronous Controller with Output Tracking
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3736EGN Datasheet(HTML) 2 Page - Linear Technology

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2
LTC3736
3736f
Input Supply Voltage (VIN) ........................ – 0.3V to 10V
PLLLPF, RUN/SS, SYNC/FCB,
TRACK, SENSE1+, SENSE2+,
IPRG1, IPRG2 Voltages ................. – 0.3V to (VIN + 0.3V)
VFB1, VFB2, ITH1, ITH2 Voltages .................. – 0.3V to 2.4V
SW1, SW2 Voltages ............ –2V to VIN + 1V or 10V Max
PGOOD ..................................................... – 0.3V to 10V
ABSOLUTE
AXI U
RATI GS (Note 1)
TG1, TG2, BG1, BG2 Peak Output Current (<10
µs) ..... 1A
Operating Temperature Range (Note 2) ... –40
°C to 85°C
Storage Temperature Range .................. –65
°C to 125°C
Junction Temperature (Note 3) ............................ 125
°C
Lead Temperature (Soldering, 10 sec)
(LTC3736EGN) ..................................................... 300
°C
PACKAGE/ORDER I FOR ATIO
24 23 22 21 20 19
7
8
9
TOP VIEW
25
UF PACKAGE
24-LEAD (4mm
× 4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
ITH1
IPRG2
PLLLPF
SGND
VIN
TRACK
SYNC/FCB
TG1
PGND
TG2
RUN/SS
BG2
TJMAX = 125°C, θJA = 37°C/W
EXPOSED PAD (PIN 25) IS PGND
MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
GN PACKAGE
24-LEAD PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
SW1
IPRG1
VFB1
ITH1
IPRG2
PLLLPF
SGND
VIN
TRACK
VFB2
ITH2
PGOOD
SENSE1+
PGND
BG1
SYNC/FCB
TG1
PGND
TG2
RUN/SS
BG2
PGND
SENSE2+
SW2
ORDER PART
NUMBER
UF PART MARKING
3736
LTC3736EUF
TJMAX = 125°C, θJA = 130°C/ W
ORDER PART
NUMBER
LTC3736EGN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes specifications that apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VIN = 4.2V unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loops
Input DC Supply Current
(Note 4)
Sleep Mode
300
425
µA
Shutdown
RUN/SS = 0V
9
20
µA
UVLO
VIN < UVLO Threshold
3
10
µA
Undervoltage Lockout Threshold
VIN Falling
q
1.95
2.25
2.55
V
VIN Rising
q
2.15
2.45
2.75
V
Shutdown Threshold at RUN/SS
0.45
0.65
0.85
V
Start-Up Current Source
RUN/SS = 0V
0.5
0.7
1
µA
Regulated Feedback Voltage
0
°C to 85°C (Note 5)
0.591
0.6
0.609
V
–40
°C to 85°C
q
0.588
0.6
0.612
V
Output Voltage Line Regulation
2.7V < VIN < 9.8V (Note 5)
0.05
0.2
mV/V


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