TPS7A88 デュアル 1A 低ノイズ LDO | TIJ.co.jp

TPS7A88 (供給中) デュアル 1A 低ノイズ LDO

 

推奨代替製品

  • TPS7A91  -  TPS7A91 is a single-channel, low-noise, 1-A LDO.
  • TPS7A47  -  TPS7A47 is a wide input voltage, low noise, 1-A LDO.

概要

The TPS7A88 is a dual, low-noise (3.8 µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 1 A per channel with only 200 mV of maximum dropout.

The TPS7A88 provides the flexibility of two independent LDOs and approximately 50% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8 V to 5.0 V. The TPS7A88 wide input-voltage range supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A88 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), high-end processors, and field-programmable gate arrays (FPGAs)].

The TPS7A88 is designed to power up noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 4-µVRMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.

特長

  • Two Independent LDO Channels
  • Low Output Noise: < 3.8 µVRMS (10 Hz–100 kHz)
  • Low Dropout: 200 mV (Max) at 1 A
  • Wide Input Voltage Range: 1.4 V to 6.5 V
  • Wide Output Voltage Range: 0.8 V to 5.0 V
  • High Power-Supply Ripple Rejection:
    • 75 dB at DC
    • 40 dB at 100 kHz
    • 40 dB at 1 MHz
  • 1.0% Accuracy Over Line, Load, and Temperature
  • Excellent Load Transient Response
  • Adjustable Start-Up In-Rush Control
  • Selectable Soft-Start Charging Current
  • Independent Open-Drain Power-Good (PG) Outputs
  • Stable with a 10-µF or Larger Ceramic Output Capacitor
  • 4-mm × 4-mm, 20-Pin WQFN Package

WEBENCH® Designer TPS7A8801

  Min   Max Range
Vin1  V 1.40 to 6.50V
Vout1  V 0.80 to 5.00V
Iout1  A ≤ 1.00A

Vin2  V 1.40 to 6.50V
Vout2  V 0.80 to 5.00V
Iout2  A ≤ 1.00A

Ambient Temp  °C -40 to 125°C


Footprint BOM Cost Efficiency

 
'Cvdd Cldo12 Rp L1_ch1 Cin_ch1 Rfbb_ch1 Rfbt_ch1 C1_ch1 Cout_ch1 L1_ch2 Cin_ch2 Rfbb_ch2 Rfbt_ch2 C1_ch2 Cout_ch2 Cin_ch3 Cout_ch3 Rfbt_ch3 Rfbb_ch3 Cin_ch4 Cout_ch4 Rfbt_ch4 Rfbb_ch4'
 

機能一覧

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Part number オーダー・オプション Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS7A88 ご注文 Adjustable Output     1     6.5     1.4     5.2     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     -40 to 125     33     3.8     1.80 | 1ku     Catalog     48     1     130     2     20QFN: 16 mm2: 4 x 4 (QFN | 20)    
TPS7A87 ご注文 Adjustable Output     0.5     6.5     1.4     5.2     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     -40 to 125     33     3.8     0.90 | 1ku     Catalog     48     1     75     2.1     20QFN: 16 mm2: 4 x 4 (QFN | 20)    
TPS7A88-Q1 ご注文 Adjustable Output     1     6.5     1.4     5.15     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
2     -40 to 140     40     3.8     2.12 | 1ku     Automotive     40     1     130     2.1     20QFN: 16 mm2: 4 x 4 (QFN | 20)    
TPS7A89 ご注文 Adjustable Output     2     6.5     1.4     5.2     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     -40 to 125     33     3.8     2.30 | 1ku     Catalog     35     1     260     2.1     20QFN: 16 mm2: 4 x 4 (QFN | 20)