EMH7070
EMH7070 is Step-Up Current Mode PWM Converter manufactured by Elite Semiconductor Microelectronics Technology.
Description
The EMH7070 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω power MOSFET make this regulator highly power efficient. The internal pensation network also minimizes as much as 6 external ponent counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current.
The EMH7070 is available in the tiny package of SOT-23-6.
Features
- Adjustable Output up to 12V
- Internal Fixed PWM frequency: 1.0MHz
- Precision Feedback Reference Voltage: 0.6V
(±2%)
- Internal 0.2Ω, 2.5A, 16V Power MOSFET
- Shutdown Current: 0.1μA
- Over Temperature Protection
- Over Voltage Protection
- Adjustable Over Current Protection: 0.5A ~ 2.5A
- Package: SOT-23-6L
Applications
- Chargers
- LCD Displays
- Digital Cameras
- Handheld Devices
- Portable Products
Typical Application
4 EN
FB 3
VIN 3.7V ~ 4.2V
5 VCC
ROC 19K
6 OC
2 GND
LX 1
0.1u F
10u Fx2ea
L=3.3u H
D1 SM340A
R1 88K
R2
10u F
0.1u F
12K x2ea
Vout=5V
Fig. 1 EMH7070 application...