EL7512
EL7512 is High Frequency PWM Step-Up Regulator manufactured by Renesas.
High Frequency PWM Step-Up Regulator
The EL7512 is a high frequency, high efficiency step-up DC:DC regulator operated at fixed frequency PWM mode. With an integrated 1A MOSFET, it can deliver up to 600m A output current at up to 90% efficiency. The adjustable switching frequency is up to 1.2MHz, making it ideal for DSL applications.
When shut down, it draws <3µA of current. This feature, along with the minimum starting voltage of 2V, makes it suitable for portable equipment powered by one lithium ion or 3 to 4 Ni MH cells.
The EL7512 is available in a 10-pin MSOP package, with maximum height of 1.1mm. With proper external ponents, the whole converter takes less than 0.25in2 PCB space.
This device is specified for operation over the full -40°C to +85°C temperature range.
Pinout
EL7512 (10-PIN MSOP)
TOP VIEW
(2V9V)
C1 10µF
R3 100k
L1 10µH
D1
1 PGND 2 SGND 3 RT 4 EN 5 LBI
LX 10
VDD 9
FB 8 SS 7 LBO 6
C3 20n F
VOUT
R4 1k
C5 47µF
(12V up to 400m A)
C4
0.1µF R2 80.6k
R1 10k
C10 4.7n F
FN7290 Rev 1.00 May 23, 2005
Features
- 90% efficiency
- Up to 600m A...
