LTC3736 LINER [Linear Technology], LTC3736 Datasheet - Page 2

• Manufacturer Part Number: LTC3736
• Description: Dual 2-Phase, No RSENSE Synchronous Controller with Output Tracking
• Manufacturer: LINER [Linear Technology]

ABSOLUTE AXI U RATI GS
ELECTRICAL CHARACTERISTICS
LTC3736
Input Supply Voltage (V
PLLLPF, RUN/SS, SYNC/FCB,
TRACK, SENSE1
IPRG1, IPRG2 Voltages ................. – 0.3V to (V
V
SW1, SW2 Voltages ............ –2V to V
PGOOD ..................................................... – 0.3V to 10V
Consult LTC Marketing for parts specified with wider operating temperature ranges.
PARAMETER
Main Control Loops
Input DC Supply Current
Undervoltage Lockout Threshold
Shutdown Threshold at RUN/SS
Start-Up Current Source
Regulated Feedback Voltage
Output Voltage Line Regulation
PACKAGE/ORDER I FOR ATIO
range, otherwise specifications are at T
2
FB1
Sleep Mode
Shutdown
UVLO
PLLLPF
TRACK
IPRG2
SGND
I
, V
TH1
V
IN
24-LEAD (4mm 4mm) PLASTIC QFN
FB2
1
2
3
4
5
6
EXPOSED PAD (PIN 25) IS PGND
MUST BE SOLDERED TO PCB
T
, I
JMAX
24 23 22 21 20 19
7
TH1
= 125 C,
8
UF PACKAGE
, I
TOP VIEW
+
9
TH2
, SENSE2
25
W
10 11 12
JA
Voltages .................. – 0.3V to 2.4V
= 37 C/W
IN
) ........................ – 0.3V to 10V
+
W W
18
17
16
15
14
13
,
SYNC/FCB
TG1
PGND
TG2
RUN/SS
BG2
U
A
= 25 C. V
IN
+ 1V or 10V Max
UF PART MARKING
W
CONDITIONS
(Note 4)
RUN/SS = 0V
V
V
V
RUN/SS = 0V
0 C to 85 C (Note 5)
–40 C to 85 C
2.7V < V
IN
IN
IN
ORDER PART
LTC3736EUF
U
IN
< UVLO Threshold
Falling
Rising
NUMBER
= 4.2V unless otherwise specified.
IN
3736
IN
+ 0.3V)
< 9.8V (Note 5)
The
U
(Note 1)
denotes specifications that apply over the full operating temperature
TG1, TG2, BG1, BG2 Peak Output Current (<10 s) ..... 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
PLLLPF
PGOOD
TRACK
IPRG1
IPRG2
SGND
SW1
V
V
I
I
TH1
TH2
FB1
V
FB2
IN
T
JMAX
24-LEAD PLASTIC SSOP
10
11
12
1
2
3
4
5
6
7
8
9
= 125 C,
GN PACKAGE
TOP VIEW
JA
= 130 C/ W
24
23
22
21
20
19
18
17
16
15
14
13
SENSE1
PGND
BG1
SYNC/FCB
TG1
PGND
TG2
RUN/SS
BG2
PGND
SENSE2
SW2
0.591
0.588
1.95
2.15
0.45
MIN
0.5
+
+
2.25
2.45
0.65
0.05
TYP
300
0.7
0.6
0.6
9
3
ORDER PART
LTC3736EGN
NUMBER
0.609
0.612
MAX
2.55
2.75
0.85
425
0.2
20
10
1
UNITS
mV/V
3736f
A
A
A
V
V
V
A
V
V