RT6200

0.6A, 36V, 1.2MHz Step-Down Converter

The RT6200 is a high voltage Buck converter that can support the input voltage range from 4.5V to 36V and the output current can be up to 0.6A. Current mode operation provides fast transient response and eases loop stabilization.

The chip also provides protection functions such as cycle-by-cycle current limit and thermal shutdown protection. The RT6200 is available in the SOT-23-6 package.

Applications

Distributed Power Systems
Battery Chargers
Pre-Regulator for Linear Regulators
WLED Drivers

Key Spec.
	RT6200
Status	Active
Vin (min) (V)	4.5
Vin (max) (V)	36
Number of Outputs	1
Vout (min) (V)	0.8
Vout (max) (V)	15
Output Adj. Method	Resistor
Iout (max) (A)	0.6
Current Limit (typ) (A)	1.2
Freq (typ) (kHz)	1200
Ext Sync	No
Ron_HS (typ) (mOhm)	350
Iq (typ) (mA)	0.55
Features	Built-in Bootstrap Switch;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;OCP;Stable with Ceramic Capacitor
Package Type	SOT-26

Features

Wide Operating Input Voltage Range : 4.5V to 36V
Adjustable Output Voltage Range : 0.8V to 15V
0.6A Output Current
0.35Ω Internal Power MOSFET Switch
High Efficiency up to 95%
1.2MHz Fixed Switching Frequency (Duty <90%)
Support duty up to 95%
Stable with Low ESR Output Ceramic Capacitors
Thermal Shutdown
Cycle-By-Cycle Over-Current Protection

Datasheet
Title	Version	Last Update	Download
RT6200: 0.6A, 36V, 1.2MHz Step-Down Converter	V4.0	2015/04/29

Technical Documents
Title	Item Type	Last Update
Richtek Featured Product Tree [Aug., 2023]	Selection Guide	2023/08/07
Multi-Source Power Management Design	App. Note	2022/04/26
Powering Microcontrollers from Industrial Supply Rails	App. Note	2014/05/02

Videos
Title	Last Update	Views
How to estimate control loop bandwidth from the transient response time?	2017/03/30	2600

Evaluation Boards
Title	Last Update	Download
RT6200GE Evaluation Board	2021/01/21

Reference Design
Title	Last Update	Download
Richtek Load Transient Tool	2022/07/25

Part Number	Package Type	Package Qty.	Free Sample	Distributor	Stock	Buy From Authorized Distributor
RT6200GE	SOT-26	3,000	Request	Digikey	3,401	Buy
				Mouser	Lead-Time: 14 weeks	Not Available
				WPG	Lead-Time: 14 weeks	Not Available

Evaluation Board
Part Number	Distributor	Stock	Buy From Authorized Distributor
EVB_RT6200GE	Digikey	1	Buy
	Mouser	Lead-Time: 14 weeks	Not Available
	WPG	Lead-Time: 14 weeks	Not Available

Please confirm with our distributor or sales representative for actual stock status.