L6985F - 38 V, 500 mA synchronous step-down switching regulator with 30 µA quiescent current - STマイクロエレクトロニクス

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製品概要

概要

The L6985F is a step-down monolithic switching regulator able to deliver up to 0.5 A DC. The output voltage adjustability ranges from 0.85V to VIN. Thanks to the P-channel MOSFET high-side power element, the device features 100% of the duty cycle operation. The wide input voltage range meets the specification for the 5 V, 12 V and 24 V power supplies. The “Low Consumption Mode” (LCM) is designed for applications active during the idle mode, so it maximizes the efficiency at the light-load with the controlled output voltage ripple. The “Low Noise Mode” (LNM) makes the switching frequency constant overload current range, meeting the low noise application specification. The output voltage supervisor manages the reset phase for any digital load (μC, FPGA). The RST open collector output can also implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at the medium - heavy load, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing on both power elements implements effective constant current protection.

特徴
0.5 A DC output current

4 V to 38 V operating input voltage

Low consumption mode or low noise mode

30 μA I_Q at light-load (LCM V_OUT = 3.3 V)

8 μA_IQ-SHTDWN

Output voltage adjustable from 0.85 V to V_IN

Adjustable f_SW (250 kHz - 2 MHz)

Embedded output voltage supervisor
同期化

Adjustable soft-start time

Internal current limiting

Overvoltage protection

Output voltage sequencing

Peak current mode architecture

R_{DSON HS} = 360 mΩ, R_{DSON LS} = 150 mΩ

Thermal shutdown
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	タイトル	バージョン	更新日

SPICE models (3)

	タイトル	バージョン	更新日
ZIP	A6985F Pspice model	1.0	31 Mar 2023	31 Mar 2023 A6985F Pspice model 1.0
ZIP	A6985F3V3 Spice model		30 Sep 2016	30 Sep 2016 A6985F3V3 Spice model
ZIP	A6985F5V Spice model		30 Sep 2016	30 Sep 2016 A6985F5V Spice model

品質 & 信頼性

製品型番	マーケティング･ステータス	パッケージ	グレード	RoHSコンプライアンスグレード	材料宣誓書**
L6985F	量産中	HTSSOP16	インダストリアル	Ecopack2
L6985FTR	量産中	HTSSOP16	インダストリアル	Ecopack2

L6985F

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HTSSOP16

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L6985FTR

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HTSSOP16

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販売代理店在庫 L6985FTR

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販売代理店在庫 L6985F

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L6985FTR 量産中

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L6985F 量産中

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