LTC3736EUF#TR Linear Technology, LTC3736EUF#TR Datasheet - Page 28

• Manufacturer Part Number: LTC3736EUF#TR
• Description: IC CTRLR SW SYNC DUAL 2PH 24QFN
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3736EUF#TR

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 9.8 V
• Current - Output: 1A
• Frequency - Switching: 550kHz ~ 750kHz
• Voltage - Input: 2.75 ~ 9.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

RELATED PARTS
TYPICAL APPLICATIO
LTC3736
PART NUMBER
LTC1622
LTC1735
LTC1772
LTC1773
LTC1778
LTC1872
LTC2923
LTC3411
LTC3416
LTC3701
LTC3708
LTC3728/LTC3728L
LTC3736-1
LTC3737
LTC3776
LTC3808
No R
28
SENSE
is a trademark of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
3.3V
10µF
V
C
IN
×2
IN
DESCRIPTION
Synchronizable Low Input Voltage Current Mode
Step-Down DC/DC Controller
High Efficiency Synchronous Step-Down Controller
Constant Frequency Current Mode Step-Down
DC/DC Controller
Synchronous Step-Down Controller
No R
Constant Frequency Current Mode Step-Up Controller
Power Supply Tracking Controller
1.25A (I
4A (I
with Output Tracking
2-Phase, Low Input Voltage Dual Step-Down DC/DC Controller
Fast 2-Phase, No R
Output Tracking
Dual, 550kHz, 2-Phase Synchronous Step-Down
Switching Regulator
Dual, 2-Phase, No R
Spread Spectrum
Dual, 2-Phase, No R
Output Tracking
Dual, 2-Phase, No R
Memory Termination
No R
Output Tracking
●
OUT
SENSE
SENSE
FAX: [phone]
OUT
), 4MHz, Synchronous Step-Down DC/DC Converter
2-Phase, Single Output Synchronous DC/DC Converter (3.3V
R
4.7nF
C
100pF
220pF
C
VIN
C
C
TM
, Low EMI, Synchronous Step-Down Controller with
ITH1A
1µF
ITH1
SS
VIN
), 4MHz, Synchronous Step-Down DC/DC Converter
10Ω
Synchronous Step-Down Controller
R
59k
FB1A
R
C
15k
22pF
ITH1
ITH2B
SENSE
SENSE
SENSE
SENSE
U
R
118k
FB1B
Buck Controller with
Synchronous Controller with
Controller with
Synchronous Controller for DDR/QDR
●
www.linear.com
1M
22
23
24
1
2
3
4
5
9
7
8
6
SW1
IPRG1
V
I
IPRG2
PLLLPF
SGND
V
PGOOD
V
I
TRACK
TH1
TH2
FB1
IN
FB2
LTC3736EUF
PGND
SYNC/FCB
SENSE1
SENSE2
25
RUN/SS
PGND
PGND
PGND
SW2
BG1
TG1
TG2
BG2
+
+
21
20
19
18
17
16
15
14
13
12
11
10
C
L1, L2: VISHAY IHLP-2525CZ-01
MP1
MP2
OUT1
, C
OUT2
: SANYO 4TPB150MC
MN1
Si7540DP
MN2
Si7540DP
COMMENTS
Burst Mode Operation, 16-Pin Narrow SSOP, Fault Protection,
3.5V ≤ V
2.65V ≤ V
Fast Transient Response, 4V ≤ V
Controls Up to Three Supplies, 10-Lead MSOP
MS Package
95% Efficiency, V
TSSOP-20E Package
Duty Cycle Operation, 5mm × 5mm QFN Package
5mm × 5mm QFN or 28-Lead SSOP
V
Spread Spectrum Operation; Output Tracking
Non-Synchronous Constant Frequency With PLL, 4mm × 4mm
QFN and 24-Lead SSOP Packages
Provides V
Adjustable Constant Frequency With PLL Up to 850kHz; Spread
Spectrum Operation; 4mm × 4mm QFN and 24-Lead SSOP
Packages
2.75V ≤ V
DFN and 16-Lead SSOP Packages
V
2.5V ≤ V
Current Mode Operation Without Sense Resistor,
2.5V ≤ V
95% Efficiency, V
2.5V ≤ V
Constant On-Time Dual Controller, V
Constant Frequency, V
IN
IN
: 2.75V to 9.8V, I
2V to 10V, Burst Mode Operation, 8-Lead MSOP
1.5µH
1.5µH
IN
IN
IN
IN
L1
L2
IN
IN
IN
DDQ
≤ 36V
≤ 9.8V, I
≤ 9.8V, 550kHz, PGOOD, PLL, 16-Lead SSOP
≤ 9.8V, SOT-23 Package, 550kHz
≤ 8.5V, I
≤ 9.8V; Spread Spectrum Operation; 3mm × 4mm
to 1.8V
+
and V
+
C
150µF
IN
IN
C
150µF
OUT2
OUT1
3736 TA02
: 2.5V to 5.5V, I
: 2.25V to 5.5V, I
OUT
OUT
OUT
OUT
TT
IN
With One IC; 2.75V ≤ V
Up to 4A, SOT-23 Package, 550kHz
Up to 5A, 4mm × 4mm QFN Package
Up to 4A, 10-Lead MSOP
to 36V, 5V and 3.3V LDOs,
at 8A)
© LINEAR TECHNOLOGY CORPORATION 2004
V
1.8V
8A
OUT
LT/TP 0305 500 REV A • PRINTED IN USA
IN
≤ 36V
Q
SD
IN
= 60µA, I
Up to 36V, Very Low
= <1µA,
SD
IN
= <1µA,
≤ 9.8V;
3736fa