Home > Power Management ICs (PMIC) > Low Dropout Regulators (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

Effective Inventory

Go to Inquiry

Image for reference only

Manufacturer Part：

LTC3200ES6-5#TRPBF

Package：

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

Brand：

Product Categories：

Low Dropout Regulators (LDO)

Other recommendations you may be interested in.

MC7805CTG

Description

Product Overview

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.

Key Specifications

Topology	Charge Pump (Voltage Doubler)
Input Voltage	2.7 V to 4.5 V
Output Voltage	5.0 V (fixed)
Output Current	150 mA
Switching Frequency	1.5 MHz
Output Resistance	0.5 Ohm (closed loop)
Quiescent Current	7 mA (operating)
Shutdown Current	1 uA
Noise	Low (linear regulation)
Operating Temperature	-40°C to +85°C
Package	SOT-23-6

Features

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

Applications

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

Product Introduction:LTC3200ES6-5#TRPBF Product Introduction

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.

Working Principle:LTC3200ES6-5#TRPBF Working Principle

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.

Pin Description:LTC3200ES6-5#TRPBF Pin Definition and Functions

Pin	Name	Function
1	VIN	Input supply (2.7-4.5V)
2	GND	Ground
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