MIC26601

The Micrel MIC26601 is a constant-frequency, synchronous buck regulator featuring a unique adaptive on-time control architecture. The MIC26601 operates over an input supply range of 4.5V to 28V and provides a regulated output of up to 6A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%, and the device operates at a switching frequency of 600kHz. Micrel’s Hyper Speed Control™ architecture allows for ultra-fast transient response while reducing the output capacitance and also makes (High VIN)/(Low VOUT) operation possible. This adaptive tON ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device. The MIC26601 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, foldback current limit, “hiccup mode” short-circuit protection and thermal shutdown. An open-drain Power Good (PG) pin is provided.

产品特性
  • Hyper Speed Control™ architecture enables
  • High delta V operation (VIN = 28V and VOUT = 0.8V)
  • Small output capacitance
  • 4.5V to 28V voltage input
  • 6A output current capability, up to 95% efficiency
  • Adjustable output from 0.8V to 5.5V
  • ±1% feedback accuracy
  • Any Capacitor™ stable - zero-to-high ESR
  • 600kHz switching frequency
  • No external compensation
  • Power Good (PG) output
  • Foldback current-limit and "hiccup mode" short-circuit protection
  • Supports safe startup into a pre-biased load
  • -40°C to +125°C junction temperature range
  • 28-pin 5mm x 6mm MLF® package
技术参数
Parameter Name Value Value
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 4.5 4.5
Input Voltage Range Max (V) 28 28
Output Voltage Range Min (V) 0.8 0.8
Output Voltage Range Max (V) 5.5 5.5
Output Current (A) max 6 6
Quiescent Current (mA) typ 0.73 0.73
Switching Frequency (kHz) 600 600
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 0.8 0.8
Duty Cycle Max (%) 0.82 0.82
SHUTDOWN Current (µA) (Typ) 5 5
文档资料
MIC26601 - 28V, 6A Hyper Speed Control? Synchronous DC/DC Buck RegulatorData Sheets11/05/20151087KB
Micrel AN 39 - How to Power GSM/GPRS/EDGE/3G/HSPA M2M ModemsAppNote10/01/20151403KB
Micrel ANLPS300 - How to Power GSM/GPRS/EDGE/3G/HSPA M2M ModemsAppNote11/16/20151403KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC26601YJL-TR28VQFN-40C to +125CT/R2.311.931.751.691.67
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC26601YJL-TR0.0816000.22718028VQFN5x6x0.9mmNiPdAue4
MIC26601 - 28V, 6A Hyper Speed Control? Synchronous DC/DC Buck Regulator MIC26601
Micrel AN 39 MIC261203
Micrel ANLPS300 MIC261203
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