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Numéro de référence | ME2129 | ||
Description | ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL | ||
Fabricant | Microne | ||
Logo | |||
1 Page
ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL
STEP-UP SWITCHING REGULATOR
Ver 03
ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL
Description
STEP-UP SWITCHING REGULATOR
Feature
The ME2129 series is a CMOS step-up
switching regulator which mainly consists of a
reference voltage source, an oscillation circuit,
an error amplifier, a phase compensation circuit,
a PWM/PFM switching control circuit. With an
external low-ON-resistance Nch Power MOS,
this product is applicable to applications
requiring high efficiency and high output current.
The ME2129 series switches its operation to the
PFM control circuit whose duty ratio is 15 % with
to the PWM/PFM switching control circuit under
a light load and to prevent decline in the
efficiency by IC operation current.
l Low voltage operation: Start-up is guaranteed from
0.9 V(IOUT =1 mA )
l Duty ratio: Built-in PWM/PFM switching control
circuit 15 to 78 % .
l oscillator frequency300KHz
l External parts: coil, diode, capacitor, and transistor
l Output voltage range: 1.5V ~6.5 V
l Output voltage accuracy±2%
l Soft start function: 2 ms.
l PACKAGESOT-23-5
Selection Guide
Typical Application:
l Mobile phones (PDC, GSM, CDMA, IMT200 etc.)
l Bluetooth equipment
l PDA
l Portable communication modem
l Portable games
l Cameras
l Digital cameras
l Cordless phones
l Notebook computers
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Pages | Pages 13 | ||
Télécharger | [ ME2129 ] |
No | Description détaillée | Fabricant |
ME2129 | ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL | Microne |
ME2129D535 | ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL | Microne |
ME2129F | ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL | Microne |
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