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LTC3826EUH#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36
LTC3826
34
3826fc
TYPICAL APPLICATIONS
High Effi ciency Dual 1.2V/1V Step-Down Converter
C
IN1
10μF
C
INT2
4.7μF
D2
D1
C1
1nF
R
B1
25.5k
3826 TA05
C
SS1
0.01μF
C
ITH1
1.2nF
R
ITH1
23.7k
R
A1
102k
C
ITH1A
100pF
C2
1nF
R
B2
49.9k
C
SS2
0.01μF
C
ITH2
1nF
R
ITH2
33.2k
R
A2
100k
C
ITH2A
100pF
C
B2
0.47μF
100k
270pF
C
B1
0.47μF
MTOP2
MBOT2
MTOP1
MBOT1
L2
2.2μH
R
SNS2
12mΩ
V
OUT1
1.0V
5A
V
IN
12V
V
OUT2
1.2V
5A
L1
1.8μH
R
SNS1
12mΩ
C
IN2
10μF
I
TH1
V
FB1
SENSE1
+
SENSE1
–
PLLLPF
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2
–
SENSE2
+
V
FB2
I
TH2
TRACK/SS2
TRACK/SS1
PGOOD2
PGOOD1
TG1
SW1
BOOST1
BG1
V
IN
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SW2
TG2
FOLDDIS
100k
LTC3826
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-1R8M
L2: CDEP105-2R2M
C
OUT1
, C
OUT2
= SANYO 10TPD150M
470pF
C
OUT1
220μF
×2
C
OUT2
220μF
×2
LTC3826
35
3826fc
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTION
5.00 ± 0.10
(4 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE A JEDEC PACKAGE OUTLINE
M0-220 VARIATION WHHD-(X) (TO BE APPROVED)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
PIN 1
TOP MARK
(NOTE 6)
0.40 ± 0.10
31
1
2
32
BOTTOM VIEW—EXPOSED PAD
3.50 REF
(4-SIDES)
3.45 ± 0.10
3.45 ± 0.10
0.75 ± 0.05
R = 0.115
TYP
0.25 ± 0.05
(UH32) QFN 0406 REV D
0.50 BSC
0.200 REF
0.00 – 0.05
0.70 ±0.05
3.50 REF
(4 SIDES)
4.10 ±0.05
5.50 ±0.05
0.25 ± 0.05
PACKAGE OUTLINE
0.50 BSC
RECOMMENDED SOLDER PAD LAYOUT
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
PIN 1 NOTCH R = 0.30 TYP
OR 0.35 s 45° CHAMFER
R = 0.05
TYP
3.45 ± 0.05
3.45 ± 0.05
UH Package
32-Lead Plastic QFN (5mm × 5mm)
(Reference LTC DWG # 05-08-1693 Rev D)
LTC3826
36
3826fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2007
LT 0109 REV C • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
High Effi ciency Dual 3.3V/8V Step-Down Converter
C
IN1
10μF
C
INT2
4.7μF
D2
D1
C1
1nF
R
B1
215k
3826 TA06
C
SS1
0.01μF
C
ITH1
560pF
R
ITH1
105k
R
A1
68.1k
C
ITH1A
150pF
C2
1nF
R
B2
353k
C
SS2
0.01μF
C
ITH2
330pF
R
ITH2
105k
R
A2
39.2k
C
ITH2A
68pF
C
B2
0.47μF
100k
C
OUT2
150μF
C
B1
0.47μF
MTOP2
MBOT2
MTOP1
MBOT1
L2
7.2μH
R
SNS2
20mΩ
V
OUT1
3.3V
10A
V
IN
12V
V
OUT2
8V
2A
L1
1.2μH
R
SNS1
7mΩ
C
IN2
10μF
C
OUT1
150μF
×2
39pF
22pF
I
TH1
V
FB1
SENSE1
+
SENSE1
–
PLLLPF
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2
–
SENSE2
+
V
FB2
I
TH2
TRACK/SS2
TRACK/SS1
PGOOD2
PGOOD1
TG1
SW1
BOOST1
BG1
V
IN
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SW2
TG2
FOLDDIS
LTC3826
100k
MTOP1, MTOP2, MBOT1, MBOT2: Si7848DP
L1: CDEP105-1R2M, L2: CDEP105-7R2M
C
OUT1
, C
OUT2
= SANYO 10TPD150M
PART NUMBER DESCRIPTION COMMENTS
LTC1735 High Effi ciency Synchronous Step-Down Switching Regulator Output Fault Protection, 16-Pin SSOP
LTC1778/LTC1778-1 No R
SENSE
™ Current Mode Synchronous Step-Down Controllers Up to 97% Effi ciency, 4V ≤ V
IN
≤ 36V, 0.8V ≤ V
OUT
≤ (0.9)(V
IN
),
I
OUT
up to 20A
LT1976 High Voltage Step-Down Switching Regulator 3.3V ≤ V
IN
≤ 60V, 100μA Quiescent Current
LTC3708 Dual, 2-Phase, DC/DC Controller with Output Tracking Current Mode, No R
SENSE
, Up/Down Tracking, Synchronizable
LTC3727/LTC3727A-1 2-Phase Dual Synchronous Controller 0.8V ≤ V
OUT
≤ 14V; 4V ≤ V
IN
≤ 36V
LTC3729 20A to 200A, 550kHz PolyPhase Synchronous Controller Expandable from 2-Phase to 12-Phase, Uses all Surface Mount
Components, V
IN
up to 36V
LTC3731 3- to 12-Phase Step-Down Synchronous Controller 60A to 240A Output Current, 0.6V ≤ V
OUT
≤ 6V, 4.5V ≤ V
IN
≤ 32V
LTC3827/LTC3827-1 Low I
Q
Dual Synchronous Controller 4V ≤ V
IN
≤ 36V, 0.8V ≤ V
OUT
≤ 10V, 80μA Quiescent Current
LTC3835/LTC3835-1 Low I
Q
Synchronous Step-Down Controller Single Channel LTC3827/LTC3827-1
LTC3845 Low I
Q
Synchronous Step-Down Controller 4V ≤ V
IN
≤ 60V, 1.23V ≤ V
OUT
≤ 36V, 120μA Quiescent Current
LTC3850 Dual, 550kHz, 2-Phase Synchronous Step-Down Controller Dual 180° Phased Controllers, V
IN
4V to 24V, 97% Duty Cycle,
4x4 QFN-28, SSOP-28
No R
SENSE
is a trademark of Linear Technology Corporation.
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LTC3826EUH#TRPBF

Mfr. #:
Buy LTC3826EUH#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Ultra Low Iq, Dual, 2-Phase Synch Step Down Controller
Lifecycle:
New from this manufacturer.
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