MCP1253-ADJI/MS Microchip Technology, MCP1253-ADJI/MS Datasheet
MCP1253-ADJI/MS
Manufacturer Part Number
MCP1253-ADJI/MS
Description
IC CHRG PUMP DC/DCCONV ADJ 8MSOP
Manufacturer
Microchip Technology
Type
Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)r
Specifications of MCP1253-ADJI/MS
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.5 ~ 5.5 V
Current - Output
120mA
Frequency - Switching
1MHz
Voltage - Input
2 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Function
Step Up/Step Down
Output Voltage
1.5 V to 5.5 V
Output Current
120 mA
Maximum Operating Temperature
+ 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP1253-ADJI/MS
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
MCP1253-ADJI/MS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
MCP1252/1253, Low Noise, Positive Regulated
Charge Pump DC-to-DC Converters
The MCP1252 and MCP1253 are inductorless, positive
regulated charge pump DC-to-DC converters. These
devices are capable of delivering 120 mA of load current
at a regulated output voltage with an input voltage above
or below the output by utilizing an automatic buck/boost
feature. They are specifically designed for applications
requiring low noise and high efficiency power conversion.
This family of converters consists of four product
variations, two for operating frequency and two for either
selectable fixed output voltages, or an adjustable output
voltage version. Specifically, the MCP1252 operates
at 650 kHz to minimize operating current and to avoid
sensitive IF bands. The MCP1253 operates at 1.0 MHz
to allow for the use of smaller external capacitors to
save board space and cost. For the selectable version,
the output voltage can be set at 3.3V by connecting
the select pin to V
grounded, the output is set at 5.0V. For the adjustable
version the output can be regulated between 1.5V and
5.5V with two external resistors.
Both devices feature a power-good (PGOOD) output
that monitors the output for out-of-regulation conditions
and a shutdown mode to further minimize power
consumption when the output is not required. Because
these converters feature thermal and short circuit
protection, they provide protection for both the load and
the power source.
These products operate at extremely low quiescent
currents and only require minimal external components,
which makes them ideally suited for small, battery
powered applications, such as, pagers, cellular phones,
personal digital assistants, lap tops, MP3 players and
hand-held or remote meters. Functions that might
incorporate these devices include, color display bias, local
3V to 5V conversions, flash memory supply voltage, white
LED backlighting, PCMCIA local 5V supplies and smart
card readers.
The MCP1252 and MCP1253 are available in small 8-pin
MSOP packages and are specified over a temperature
range of -40°C to +85°C.
M i c r o c h i p T e c h n o l o g y I n c .
IN
. Conversely, when the select pin is
•
T h e E m b e d d e d C o n t r o l S o l u t i o n s C o m p a n y ®
Features:
•
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•
•
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Low operating current: 80 µA (typical)
Supply voltages as low as 2.0V
High output current: 120 mA minimum
Output voltage accuracy: ±2.5%
Power-good (PGOOD) output indicator with hysteresis
Thermal shutdown protection with hysteresis
Short circuit protection
Logic level shutdown mode
Over-current and over-temperature protection
Small 8-pin MSOP package
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MCP1253-ADJI/MS Summary of contents
Page 1
... LED backlighting, PCMCIA local 5V supplies and smart card readers. The MCP1252 and MCP1253 are available in small 8-pin MSOP packages and are specified over a temperature range of -40°C to +85° ...
Page 2
... Product Line Card, Order No. DS00148 • Analog & Interface Families Data Book 2002, Order No. DS00207 • 2002 Technical Documentation Analog & Interface Product Families CD-ROM, Order No. DS51205 • MCP1252/MCP1253, Data Sheet, DS21752 MCP1252/1253 Charge Pump DC-to-DC Converters Product Output Voltage MCP1252 - 33X50 Selectable, 3.3V or 5.0V MCP1252 - ADJ Adjustable, 1 ...