ISL80121-5

1A Ultra Low Dropout Linear Regulator with Programmable Current Limiting

OVERVIEW

The ISL80121-5 is a low dropout voltage, single output LDO with programmable current limiting. The ISL80121-5 operates from input voltages of 5V to 6V with a nominal output voltage of 5V. Other custom voltage options are available upon request.

A submicron BiCMOS process is utilized for this product family to deliver the best in class analog performance and overall value. The programmable current limiting improves system reliability of end applications. An external capacitor on the soft-start pin provides an adjustable soft-starting ramp. The ENABLE feature allows the part to be placed into a low quiescent current shutdown mode.

This BiCMOS LDO will consume significantly lower quiescent current as a function of load compared to bipolar LDOs, which translates into higher efficiency and packages with smaller footprints. Quiescent current is modestly compromised to achieve a very fast load transient response.

KEY FEATURES

  • ±1.8% VOUT accuracy guaranteed over line, load and TJ = -40°C to +125°C
  • Very low 130mV dropout voltage
  • High accuracy current limit programmable up to 1.75A
  • Very fast transient response
  • 210µVRMS output noise
  • Power-good output
  • Programmable soft-start
  • Over-temperature protection
  • Small 10 Ld DFN package

PARAMETRICS

Parameters
ISL80121-5
Basic Information
Production Status
量産中
入力電圧 (V) (min)
2.2
入力電圧 (V) (max)
6
外部バイアス
No
出力電圧 (V) (min)
0.8
出力電圧 (V) (max)
5
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)
1
PSRR (dB)
40
認定レベル
Standard
ノイズ (μVRMS 10Hz~100kHz)
210
ドロップアウト電圧 (mV) (Typ.)
90 @ 1A
イネーブル/シャットダウン
Yes
PGOOD出力
Yes
入力電圧範囲 (V)
2.2 to 6.0
出力電圧範囲 (V)
0.8 to 5.0
CANサンプル
YES
温度範囲
-40 to +125

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