Constant-Voltage, Constant-Current DC/DC μModule Products

Constant-Voltage, Constant-Current
DC/DC µModule Products
Our constant-voltage, constant-current (CVCC) µModule® regulators provide
accurate input current limit in applications such as Peltier devices for cooling
and heating, battery and supercapacitor chargers, LED and laser drivers,
and motor and fan controllers. These products include a DC/DC controller,
MOSFETs, inductor and supporting components in an LGA or BGA package.
Only a few resistors, the bulk input and output capacitors are required to
complete the design.
LTM8026
LTM8052
Architecture
LTM8064
LTM8055
LTM8056
Buck-Boost
Output Current Limit
Yes
Input Current Limit
No
Input Voltage Range
6V to 36V
Output Voltage Range
1.2V to 24V
5A (Sink)
5A (Source)
Output Continuous Current
5A
Package Size (mm)
11.25 x 15 x 2.82 (LGA)
11.25 x 15 x 3.42 (BGA)
Compatibility
LTM8054
Step-Down
Yes
6V to 58V
5V to 36V
5V to 58V
1.2V to 36V
1.2V to 36V
1.2V to 48V
6A (Sink)
6A (Source)
5.4A
16 x 11.9 x 4.92
BGA
15 x 11.25 x 3.42
BGA
Pin Compatible
L, LT, LTC, LTM, Linear Technology, µModule and the Linear
logo are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
8.5A
5.5A
15 x 15 x 4.92
BGA
Pin Compatible
Constant-Voltage, Constant-Current
DC/DC µModule Products
Peltier Driver
LTM8064
VIN
VIN
10V TO 58V
Two LTM8064s Used to Regulate
Positive or Negative Voltage (and Current)
Across a Peltier Device
OPTIONAL
INPUT
PROTECTION
2x4.7µF
+
MODE
SYNC
8
MAXIMUM PELTIER CURRENT (A)
100µF
RUN
SS
15µF
100V
6
221k
200kHz
4
2
RT
GND
–2
–3
–2
–1
0
1
PELTIER VOLTAGE (V)
2
100µF
MODE
SYNC
130k
325kHz
3
FIXED
5V
6A
VOUT
–6
–8
PELTIER
DEVICE
2.87k
TO 24.3k
SS
2x4.7µF
+
100µF
(OPTIONAL)
RUN
15µF
100V
–4
470µF
16V
CTRL1
CTRL2
VREF
FB
VIN
+
0
VOUT
2V TO 8V
6A
VOUT
RT
GND
330µF
10V
CTRL1
CTRL2
VREF
FB
511k
+
PINS NOT USED
IN THIS CIRCUIT:
IOUTMON, PGOOD
LED Driver
LTM8064
Step-Down 4A Drive with
Five White Series LEDs
VIN
VIN
19V TO 58V
+
2x4.7µF
15µF
100V
22µF
RUN
CTRL1
CTRL2
MODE
SYNC
RT
PINS NOT USED
IN THIS CIRCUIT:
SS, IOUTMON, PGOOD
VOUT
16V
4A
VOUT
GND
VREF
FB
97.6k
430kHz
100µF
25V
+
5xLUMINUS
CBT-90
100k
1.30k
76.8k
Battery Charger
LTM8056
3.5
3.5
3.0
3.0
OUTPUT
2.5
2.5
2.0
2.0
1.5
1.5
INPUT
1.0
1.0
0.5
0.5
0
0
20
40
INPUT VOLTAGE (V)
1µF
100V
OUTPUT CURRENT (A)
INPUT CURRENT (A)
14.4V, 3A Lead-Acid Battery Charger Input Current Limited to 2A
VIN
SVIN
VOUT
0.022Ω
VIN
3V TO 58V
2.2µF
100V
×3
31.6k
650kHz
0.018Ω
VOUT
14.4V
IOUT
IIN
RUN
CTL
SS
SYNC
COMP
MODE
RT
100k
LL
GND
CLKOUT
IINMON
IOUTMON
FB
+
47µF
25V
22µF
25V
9.09k
0
60
www.linear.com/umodule_cvcc n 1-800-4-LINEAR
0316
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