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RT6208

更新时间： 2024-01-29 16:37:25

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RT6208 技术参数

Status：	Active	Vin (min) (V)：	4.75
Vin (max) (V)：	36	Number of Outputs：	1
Vout (min) (V)：	0.8	Vout (max) (V)：
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	0.1	Current Limit (typ) (A)：	0.225
Freq (typ) (kHz)：		Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	3000	Ron_LS (typ) (mOhm)：	1500
Iq (typ) (mA)：	0.16	Features：	Enable Input;OCP;OVP;PSM;Power Good
Package Type：	SOT-26;SOT-28

RT6208

this architecture, the maximum average output current

is equal to half of the peak current. The hysteresis

nature of this control architecture results in a switching

frequency that is a function of the input voltage, output

voltage and inductor value. This behavior provides

inherent short‑circuit protection. If the output is shorted

to ground, the inductor current will decay very slowly

during a single switching cycle. Since the high-side

switch turns on only when the inductor current is near

zero, the RT6208 inherently switches at a lower

frequency during short-circuit condition.

REF

- V

Hys

REF

High-Side Peak Current (PC)

Inductor Current

Low-Side Zero Current (ZC)

Sleep

Mode

Boundary Conduction

Mode

Sleep

Mode

Switch between High-Side PC and

Low-Side ZC

Stop Switch

Figure 1. Hysteresis Mode

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS6208-02 May 2016

1 2 345 6 7...16

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