MP3212 MPS, MP3212 Datasheet - Page 7

• Manufacturer Part Number: MP3212
• Description: 1.3a, 1mhz Step-up Regulator With Integrated Input Disconnect Switch
• Manufacturer: MPS

BLOCK DIAGRAM
MP3212 Rev. 0.9
3/21/2008
5
3
8
(1.23V)
SHDN
VREF
VDD
FB
MP3212–1.3A, 1MHz, STEP-UP REGULATOR WITH INTEGRATED INPUT DISCONNECT SWITHCH
1Meg
AMPLIFIER
/INRUSH CURRENT
ERROR
DISCONNECT
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
CONTROL
AGND
Gm
7
Figure 1—Functional Block Diagram
VDDOUT
2
OSC
COMPARATOR
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PWM
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OPERATION
CONTROL
PFM
CONTROL
LOGIC
THERMAL SHUTDOWN
CURRENT SENSE
AMPLIFIER
PROTECTION
VOLTAGE
OVER-
PGND
SW
10
1
VOUT
9
7