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ME6211

Synchronous Buck Converter

The ME6211 is a synchronous buck converter from Nanjing Micro One. View the full ME6211 datasheet below including electrical characteristics, absolute maximum ratings.

Manufacturer

Nanjing Micro One

Category

Switching Regulators (Buck)

Package

SOT89-3, SOT23-3

Overview

Part: ME6211 Series from Microne

Type: CMOS LDO Voltage Regulator

Description: 2–6.0 V input, up to 500 mA output CMOS LDO voltage regulator with ±2% accuracy, 70 dB ripple rejection, and 50 μVrms output noise.

Operating Conditions:

  • Supply voltage: 2V–6.0V
  • Operating temperature: -40 to +150 °C
  • Max output current: 500mA
  • Output voltage accuracy: ±2%

Absolute Maximum Ratings:

  • Max supply voltage: 6.5 V
  • Max continuous current: 600 mA
  • Max junction/storage temperature: +150 °C

Key Specs:

  • Output Voltage Accuracy: ±2% (I_OUT=30mA, V_IN=V_OUT+1V)
  • Maximum Output Current: 500mA (V_IN=V_OUT+1V)
  • Dropout Voltage: 100mV (TYP.) @ I_OUT=100mA
  • Supply Current: 40μA (TYP.) (V_IN=V_OUT+1V)
  • Standby Current: 0.1μA (TYP.) (V_CE=0V)
  • Ripple Rejection Rate: 70dB (TYP.) @ 1KHz (I_OUT=10mA)
  • Output Noise: 50μVrms (TYP.) (I_OUT=40mA, 300Hz~50kHz)
  • Line Regulation: 0.05%/V (TYP.) (I_OUT=40mA, V_OUT+1V ≤ V_IN ≤ 6.5V)

Features:

  • Maximum Output Current: 500mA
  • Dropout Voltage: 100mV@ I_OUT =100mA
  • Operating Voltage Range: 2V ～ 6.0V
  • Highly Accuracy: ± 2 ％
  • Low Power Consumption: 40μA （ TYP. ）
  • Standby Current: 0.1μA （ TPY. ）
  • High Ripple Rejection: 70dB@1KHz
  • Low output noise: 50μVrms
  • Line Regulation: 0.05 ％（ TYP. ）

Applications:

  • Mobile phones
  • Cordless phones, radio communication equipment
  • Portable games
  • Cameras, Video cameras
  • Reference voltage sources
  • Battery powered equipment

Package:

  • SOT89-3 (3-pin)
  • SOT23-3 (3-pin)
  • SOT23-5 (5-pin)
  • SOT353 (5-pin)
  • DFN2*2-6L (6-pin)

Features

The ME6211 series are highly accurate, low noise, CMOS LDO Voltage Regulators. Offering low output noise, high ripple rejection ratio, low dropout and very fast turn-on times, the ME6211 series is ideal for today's cutting edge mobile phone. Internally the ME6211 includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensators. The ME6211's current limiters' foldback circuit also operates as a short protect for the output current limiter and. the output pin. The ME6211 series is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies.The CE function allows the output of regulator to be turned off, resulting in greatly reduced power consumption.

Pin Configuration

Electrical Characteristics

ME6211C12 (VIN= VOUT+1V ， VCE = VIN ， CIN=CL=1μF ， Ta=25 O C ,unless otherwise noted)

ParameterSymbolConditionsConditionsMin.Typ.Max.Units
Output VoltageV OUT (E) (Note 2)I OUT =30mA, V IN = V OUT +1VI OUT =30mA, V IN = V OUT +1VX 0.98V OUT (T) (Note 1)X 1.02V
Maximum Output CurrentI OUTMAXV IN = V OUT +1VV IN = V OUT +1V300mA
Load Regulation∆ V OUTV IN = V OUT +1V , 1mA≤I OUT ≤100mAV IN = V OUT +1V , 1mA≤I OUT ≤100mA8mV
Dropout Voltage (Note 1)V DIF1I OUT =100mAI OUT =100mA280mV
V DIF2I OUT =200mAI OUT =200mA500mV
Supply CurrentI SSV IN = V OUT +1VV IN = V OUT +1V40μA
Stand-by CurrentI CELV CE ＝ 0VV CE ＝ 0V0.1μA
Line Regulation∆V OUT ∆ V IN • V OUTI OUT =40mA V OUT +1V ≤V IN ≤6.5VI OUT =40mA V OUT +1V ≤V IN ≤6.5V0.03%/V
CE 'High' VoltageVCEHStart upStart up1.0V
CE 'Low' VoltageVCELShut downShut down0.5V
Output noiseENI OUT =40mA ， 300Hz~50kHzI OUT =40mA ， 300Hz~50kHz50μVrms
Ripple Rejection RatePSRRV IN = [V OUT +1]V +1Vp-pACI OUT =10mA, 1kHZ70dB
Ripple Rejection RatePSRRV IN = [V OUT +1]V +1Vp-pACI OUT =100mA, 10kHZ62dB

ME6211C18 (VIN= VOUT+1V ， VCE = VIN ， CIN=CL=1μF ， Ta=25 O C, unless otherwise noted)

ParameterSymbolConditionsConditionsMin.Typ.Max.Units
Output VoltageV OUT (E) (Note 2)I OUT =30mA, V IN = V OUT +1VI OUT =30mA, V IN = V OUT +1VX 0.98V OUT (T) (Note 1)X 1.02V
Maximum Output CurrentI OUTMAXV IN = V OUT +1VV IN = V OUT +1V300mA
Load Regulation∆ V OUTV IN = V OUT +1V , 1mA≤I OUT ≤100mAV IN = V OUT +1V , 1mA≤I OUT ≤100mA9mV
Dropout Voltage (Note 1)V DIF1I OUT =100mAI OUT =100mA200mV
V DIF2I OUT =200mAI OUT =200mA400mV
Supply CurrentI SSV IN = V OUT +1VV IN = V OUT +1V40μA
Stand-by CurrentI CELV CE ＝ 0VV CE ＝ 0V0.1μA
Line Regulation∆V OUT ∆ V IN • V OUTI OUT =40mA V OUT +1V ≤V IN ≤6.5VI OUT =40mA V OUT +1V ≤V IN ≤6.5V0.05%/V
CE 'High' VoltageVCEHStart upStart up1.0V
CE 'Low' VoltageVCELShut downShut down0.5V
Output noiseENI OUT =40mA ， 300Hz~50kHzI OUT =40mA ， 300Hz~50kHz50μVrms
Ripple Rejection RatePSRRV IN = [V OUT +1]V+1Vp-pACI OUT =10mA, 1kHZ70dB
Ripple Rejection RatePSRRV IN = [V OUT +1]V+1Vp-pACI OUT =100mA, 10kHZ62dB

V14 www.microne.com.cn Page 6 of 20

ME6211

Absolute Maximum Ratings

ParameterParameterSymbolRatingsUnits
Input VoltageInput VoltageV IN6.5V
Output CurrentOutput CurrentI OUT600mA
Output VoltageOutput VoltageV OUTVss-0.3 ～ V IN +0.3V
CE Pin VoltageCE Pin VoltageV CEVss-0.3 ～ V IN +0.3V
SOT23P D300mW
SOT353P D250mW
DFN2*2-6LP D300mW
SOT89P D500mW
Operating Temperature RangeOperating Temperature RangeT OPR－ 40 ～＋ 150°C
Storage Temperature RangeStorage Temperature RangeT STG－ 40 ～＋ 150°C

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ME6211

Typical Application

  •  Mobile phones
  •  Cordless phones, radio communication equipment
  •  Portable games
  •  Cameras, Video cameras
  •  Reference voltage sources
  •  Battery powered equipment

ME6211

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
ME6211A12PGNanjing Micro OneSOT89-3
ME6211C33M5GNanjing Micro OneSOT89-3
ME6211C33M5G-NNanjing Micro One—
ME6211H33M5GNanjing Micro OneSOT23-5
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