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MAX8614A, MAX8614B
Dual-Output (+ and -) DC-DC Converters for CCD
Small, 3mm x 3mm TDFN Package
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Status
Active: In Production.
Description
The MAX8614A/MAX8614B dual-output step-up DC-DC
converters generate both a positive and negative supply
voltage that are each independently regulated. The
positive output delivers up to 50mA while the inverter
supplies up to 100mA with input voltages between 2.7V
and 5.5V. The MAX8614A/MAX8614B are ideal for powering
CCD imaging devices and displays in digital
cameras and other portable equipment.
The MAX8614A/MAX8614B generate an adjustable
positive output voltage up to +24V and a negative output
down to 16V below the input voltage. The
MAX8614B has a higher current limit than the
MAX8614A. Both devices operate at a fixed 1MHz frequency
to ease noise filtering in sensitive applications
and to reduce external component size.
Additional features include pin-selectable power-on
sequencing for use with a wide variety of CCDs, True
Shutdown™, overload protection, fault flag, and internal
soft-start with controlled inrush current.
The MAX8614A/MAX8614B are available in a spacesaving
3mm x 3mm 14-pin TDFN package and
are specified over the -40°C to +85°C extended
temperature range.
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Data Sheet
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An evaluation kit is available: MAX8614EVKIT
Key Features
- Dual Output Voltages (+ and -)
- Adjustable Up to +24V and Down to -10V at 5.5VIN
- Output Short/Overload Protection
- True Shutdown on Both Outputs
- Controlled Inrush Current During Soft-Start
- Selectable Power-On Sequencing
- Up to 90% Efficiency
- 1µA Shutdown Current
- 1MHz Fixed-Frequency PWM Operation
- Fault-Condition Flag
- Thermal Shutdown
- Small, 3mm x 3mm, 14-Pin TDFN Package
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Applications/Uses
- Camcorders and Portable Multimedia
- CCD Bias Supplies and OLED Displays
- Digital Cameras
- PDAs and Smartphones
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Key Specifications:
| Inverting Switching Regulators |
| Part Number |
VIN
(V) |
VIN
(V) |
Max. IOUT
(A) |
Max. IOUT
(A) |
Output Adjust. Method |
DC-DC Outputs |
Alternate Topology |
Oper. Freq.
(kHz) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
≥ |
≤ |
max w/pins |
See Notes |
| MAX8614 |
2.7 |
5.5 |
0.125 |
0.125 |
Resistor |
2 |
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1000 |
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9.6 |
$2.15 @1k |
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See All Inverting Switching Regulators (25)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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| Multifunction PMICs |
| Part Number |
Primary Topology |
Monitor/Control Features |
DC-DC/Power Features |
VIN
(V) |
VIN
(V) |
Max. IOUT
(A) |
Max. IOUT
(A) |
Oper. Freq.
(kHz) |
Inverting Outputs |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
≥ |
≤ |
max w/pins |
See Notes |
| MAX8614 |
|
| Low Batt./POK Output | | Shutdown |
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| Current Limit | | Fixed Freq./PWM | | Internal Pwr. FETs | | Soft Start |
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2.7 |
5.5 |
0.125 |
0.125 |
1000 |
1 |
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9.6 |
$2.15 @1k |
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See All Multifunction PMICs (96)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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| Step-Up Switching Regulators |
| Part Number |
VIN
(V) |
VIN
(V) |
Max. IOUT
(A) |
Max. IOUT
(A) |
Output Adjust. Method |
DC-DC Outputs |
Oper. Freq.
(kHz) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
≥ |
≤ |
max w/pins |
See Notes |
| MAX8614 |
2.7 |
5.5 |
0.125 |
0.125 |
Resistor |
2 |
1000 |
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9.6 |
$2.15 @1k |
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See All Step-Up Switching Regulators (91)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-4014
Rev 1;
2006-10-19
This page last modified: 2007-04-30
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