الصفحة الرئيسية > الدوائر المتكاملة لإدارة الطاقة (PMIC) > منظِّمات التسرب المنخفض (LDO) > LTC3200ES6-5#TRPBF

LTC3200ES6-5#TRPBF

5V/150mA regulated charge pump, 2.7-4.5V in, 1.5MHz, 2 caps only, SOT-23-6

3450

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جزء الشركة المصنعة ： جزء الشركة المصنعة

LTC3200ES6-5#TRPBF

الحزمة ： الحزمة

SOT-23-6 (2.90 x 1.60 x 1.00 mm)

العلامة التجارية ： العلامة التجارية

فئات المنتجات:：فئات المنتجات

منظِّمات التسرب المنخفض (LDO)

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MC7805CTG

الوصف

نظرة عامة على المنتج

The LTC3200ES6-5#TRPBF from Analog Devices (Linear Technology) is a 150mA, low-noise, regulated charge pump that generates a fixed 5V output from a 2.7V to 4.5V input. Requiring only two external capacitors, it operates at 1.5MHz with Burst Mode for light-load efficiency in a 6-lead SOT-23 package.

المواصفات الرئيسية

الطوبولوجيا	Charge Pump (Voltage Doubler)
جهد الإدخال	2.7 V to 4.5 V
جهد الخرج	5.0 V (fixed)
تيار الإخراج	150 mA
تردد التحويل	1.5 MHz
Output Resistance	0.5 Ohm (closed loop)
تيار التهدئة	7 mA (operating)
تيار إيقاف التشغيل	1 uA
Noise	Low (linear regulation)
درجة حرارة التشغيل	-40 درجة مئوية إلى +85 درجة مئوية
الحزمة	SOT-23-6

الميزات

5V/150mA regulated charge pump from 2.7-4.5V input with only 2 external capacitors
1.5MHz high-frequency operation allows small 1uF ceramic capacitors
Linear regulation output stage provides low-noise 5V for noise-sensitive loads
0.5 Ohm closed-loop output resistance for excellent load regulation

التطبيقات

5V LED and white LED bias from 3.3V or single Li-Ion cell
5V supply for USB peripherals from 3.3V systems
LCD bias and organic LED display supply generation

مقدمة المنتج:LTC3200ES6-5#TRPBF مقدمة المنتج

The LTC3200ES6-5#TRPBF from Analog Devices (formerly Linear Technology) is a low-noise, regulated charge pump that generates a fixed 5V output from a 2.7V to 4.5V input. The device uses a voltage-doubling charge pump followed by a linear regulation stage, providing a low-noise output suitable for noise-sensitive applications. The 1.5MHz switching frequency allows the use of small 1uF ceramic capacitors, minimizing board space. The closed-loop output resistance is only 0.5 Ohm, providing excellent load regulation. The device requires only two external capacitors (input and output), with no inductors needed. Burst Mode operation at light loads maintains high efficiency. The shutdown pin reduces supply current to 1uA. The SOT-23-6 package provides a compact footprint for portable applications. The -5 suffix indicates the fixed 5V output version.

مبدأ العمل:LTC3200ES6-5#TRPBF مبدأ العمل

The LTC3200ES6-5#TRPBF uses a charge-pump doubler followed by linear regulation. (1) Charge Pump: The internal charge pump operates as a voltage doubler. During phase 1, the flying capacitor (CFLY) charges from VIN. During phase 2, CFLY is connected in series with VIN, producing 2xVIN at the raw pump output. The 1.5MHz switching frequency keeps the capacitors small. (2) Linear Regulation: The raw doubled voltage feeds an internal linear regulator (LDO) that regulates the output to exactly 5V. This LDO stage absorbs the excess voltage and ripple from the charge pump, providing a clean, low-noise output. (3) Feedback Loop: The output voltage is sensed by an internal resistive divider (for the -5 fixed version). The error amplifier controls the charge pump drive strength to maintain the LDO input slightly above the dropout voltage, minimizing power dissipation while maintaining regulation. (4) Shutdown: Driving the SHDN pin low disables both the charge pump and LDO, reducing supply current to 1uA.

وصف الدبوس:LTC3200ES6-5#TRPBF تعريف الدبوس ووظائفه

دبوس	الاسم	الوظيفة
1	VIN	Input supply (2.7-4.5V)
2	GND	أرضي
3	CFLY	Flying capacitor (1uF to VIN)
4	COUT	Output/flying cap return (1uF to GND)
5	SHDN	Shutdown (high=on, low=off)
6	VOUT	5V regulated output