MAX1567ETL+ Maxim Integrated Products, MAX1567ETL+ Datasheet - Page 24

• Manufacturer Part Number: MAX1567ETL+
• Description: IC DGTL CAM PWR-SUP 6CH 40TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1567ETL+

• Applications: Controller, Digital Camera
• Voltage - Input: 0.7 ~ 5.5 V
• Number Of Outputs: 7
• Voltage - Output: 1.25 ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Six-Channel, High-Efficiency, Digital
Camera Power Supplies
Figure 13. SEPIC Converter Additional Boost-Buck Channel
Figure 15. Using SDOK to Drive External PFET that Gates 3.3V Power to CPU After 1.8V Core Voltage Is in Regulation
24
______________________________________________________________________________________
1-CELL
(PARTIAL)
INPUT
MAX1566
MAX1567
V
PART OF
PV
SU
Li+
PVSU
DL_
FB_
L1
Q1
C2
L2
SUSD
D1
CURRENT-
OR DOWN
CURRENT-
(PARTIAL)
MODE UP
MAX1566
MAX1567
MODE
STEP-
DOWN
PWM
PWM
R1
R2
PGSD
OUTPUT
3.3V
SDOK
PVSD
LXSD
FBSD
PVM
PGM
FBM
LXM
L3
L4
TO
V
Figure 14. Adding a PWM Channel with an External MAX1801
Slave Controller
BATT
V
OUT
V
+1.8V
350mA
SD
DL
FB
COMP
GND
TO BATT
MAX1801
V
+3.3V
3.3V
TO
CPU
M
DCON
OSC
REF
IN
PVSU
OSC
REF
MAX1566
MAX1567
(PARTIAL)