ISL9021A

250mA Single LDO with Low I<sub>Q</sub>, Low Noise and High PSRR LDO

Product Status: 量産中

OVERVIEW

The ISL9021A is a single LDO, which provides high performance, low input voltage and high PSRR. It delivers guaranteed continuous 250mA load current and is stable with 1µF to 4.7µF of output capacitance (±30%) with an ESR range of 5mΩ to 400mΩ.

The input voltage range for the ISL9021A is between 1.5V to 5.5V and the output voltage comes in many fixed voltage options with ±1.8% accuracy over-temperature, line and load ranges. The ISL9021A has typical PSRR of 75dB @ 10kHz and 50dB @ 1MHz.

The reverse current protection feature prevents current from flowing back to the power source when the output voltage is pulled higher than the input.

The ISL9021A is offered in tiny 4-bump 0.975mmx1.155mm WLCSP and 1.6mmx1.6mm 6 Ld µTDFN packages.

KEY FEATURES

  • High Performance LDO with 250mA Guaranteed Continuous Output Current
  • Input Voltage Range: 1.5V to 5.5V
  • Output Voltage Range: 1.2V to 3.3V
  • High PSRR: 75dB @ 10kHz, 50dB @ 1MHz
  • Low Quiescent Current: 35µA
  • Dropout Voltage: <150mV @ 250mA
  • Stable with 1µF to 4.7µF Output Capacitance (±30%) with an ESR range of 5mΩ to 400mΩ
  • ±1.8% Output Accuracy Over-Temperature/Load/Line
  • Soft-start Limits Input Current Surge During Enable
  • Current Limit and Overheat Protection
  • -40°C to +85°C Operating Temperature Range
  • Available in 0.975mmx1.155mm 4-bump WLCSP Package and 1.6mmx1.6mm 6 Ld µTDFN
  • Pb-free (RoHS compliant)

PARAMETRICS

Parameters
ISL9021A
Basic Information
Production Status
量産中
入力電圧 (V) (min)
1.5
入力電圧 (V) (max)
5.5
外部バイアス
No
出力電圧 (V) (min)
0.9
出力電圧 (V) (max)
3.3
固定出力電圧オプション
Yes
O/P電圧精度 (%)
±1.8
出力電流1 (A) (max)
0.25
PSRR (dB)
60
認定レベル
Standard
ノイズ (μVRMS 10Hz~100kHz)
13
IQ
35 µA
ドロップアウト電圧 (mV) (Typ.)
150 @ 250mA
イネーブル/シャットダウン
Yes
POR数
N/A
PGOOD出力
No
入力電圧範囲 (V)
1.5 to 5.5
出力電圧範囲 (V)
0.9 to 3.3
CANサンプル
YES
温度範囲
-40 to +85

ブロック図

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