Datasheet > AME1300JEQA300

AME1300JEQA300

更新时间： 2022-11-26 07:24:41

品牌	Logo	应用领域
安茂微 - AME		/
页数	文件大小	规格书
11页	164K
描述
AME1300 300mA CMOS LDO with RESET Function

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AME1300JEQA300 数据手册

AME, Inc.

300mA CMOS LDO with RESET Function

AME1300

n Enable

When actively pulled low, the PMOS pass transistor

shuts off, and all internal circuits are powered down. In

this state, the quiescent current is less than 10µA. This

pin behaves much like an electronic switch.

RESET Output

The RESET output is driven active low within 40µsec of

V_DETfalling through the reset threshold.RESET is main-

tained active for a minimum of 140msec after V_DETrises

above the reset threshold. The AME1300 has an active-

low RESET output. The output of the AME1300 is guar-

anteed vaild down to V_DET= 1V and is optimized to reject

fast transient glitches on the V_DETline.

n External Capacitors

The AME1300 is stable with an output capacitor to

ground of 2.2µF or greater. Ceramic capacitors have the

lowest ESR, and will offer the best AC performance. Con-

versely, Aluminum Electrolytic capacitors exhibit the high-

est ESR, resulting in the poorest AC response. Unfortu-

nately, large value ceramic capacitors are comparatively

expensive. One option is to parallel a 0.1µF ceramic

capacitor with a 10µF Aluminum Electrolytic. The benefit

is low ESR, high capacitance, and low overall cost.

A second capacitor is recommended between the in-

put and ground to stabilize Vin. The input capacitor should

be at least 0.1µF to have a beneficial effect.

A third capacitor can be connected between the BY-

PASS pin and GND. This capacitor can be a low cost

Polyester Film variety between the value of 0.001~0.01µF.

A larger capacitor improves the AC ripple re-jection,but

also makes the output come slowly. This “Soft” turn-on

is desirable in some applications to limit turn-on surges.

All capacitors should be placed in close proximity to

the pins. A “Quiet” ground termination is desirable. This

can be achieved with a “Star” connection.

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