EV1340QI Datasheet, PDF (11/20 Pages) Enpirion, Inc. – 5A Synchronous Highly Integrated DC-DC DDR2/3/QDRTM Memory Termination and Low VIN Power SoC

Functional Block Diagram
EV1340QI
VDDQ
UVLO
Thermal Limit
Current Limit
EV1340QI
HS-Drive
AVIN
FQADJ
ENABLE
(-)
PWM
Comp
(+)
Sawtooth
Generator
LS-Drive
Compensation
Network
EAOUT
(-)
Error
Amp
(+)
2k
Power
Good
Logic
VREF
Soft Start
Pre-bias
Bandgap
Reference
18.8k
AVIN
AGND AVIN _{EN_PB} EAOUT
VSENSE
Figure 4: Functional Block Diagram
2.5V
94k
196k
VDDQ
VDDB
NC(SW)
VOUT
PGND
VFB
VDDQOK
POK
06218
11
March 24, 2015
www.altera.com/enpirion
Rev C