ame5252 AME, Inc., ame5252 Datasheet - Page 5

• Manufacturer Part Number: ame5252
• Description: Dual Synchronous, 600ma, 1.5mhz Step-down Dc/dc Converter
• Manufacturer: AME, Inc.

n Pin Description
AME5252
n Pin Configuration
Note:
* The area enclosed by dashed line represents Exposed Pad (Pin11) and must be connected to GND.
Rev.A.01
Pin Number
10
11
1
2
3
4
5
6
7
8
9
10
1
MSOP-10/PP
AME5252
AME
Top View
2
9
3
8
Pin Name
4
7
SYNC
PORB
PGND
VFB1
VFB2
SW1
GND
SW2
EN1
EN2
IN
6
5
AME5252-A2Bxxx
1. VFB1
2. EN1
3. IN
4. SW1
5. GND
6. SYNC
Die Attach:
Conductive Epoxy
Regulator 1 Output Feedback. Receives the feedback voltage from the external
resistive divider across the output. Nominal voltage for this pin is 0.6V.
Regulator 1 Enable. Forcing this pin to V
to GND caused regulator 1 to shutdown.
Main Power Supply. Must be closely decoupled to GND.
Regulator 1 Switch Node Connection to the Inductor. This pin swings from V
to GND.
Main Ground. Connect to the (-) terminal of C
The oscillation frequency can be syncronized to an external oscillator applied
to this pin and pulse skipping mode is automatically selected. Do not float this
pin.
Regulator 2 Switch Node Connection to the Inductor. This pin swings from V
to GND.
Power-on Reset. This common-drain logic output is pulled to GND when the
output voltage is not within 8.5% of regulation and goes high after 175ms when
both channels are within regulation.
Requlator 2 Enable. Output Feedback. Forcing this pin to V
2, while forcing it to GND causes regulator 2 to shut down.
Regulator 2 Output Feedback Reveives the feedback voltage from the external
resistive divider across the output Nominal voltage for this pin is 0.6V.
Must be Connected to GND.
7. SW2
8. PORB
9. EN2
10. VFB2
11. *PGND
Dual Synchronous, 600mA, 1.5MHz
C
(3mmx3mmx0.75mm)
10
1
Pin Description
AME5252
Top View
DFN-10B
9
2
Step-Down DC/DC Converter
8
3
7
4
6
5
IN
enables regulator 1, while forcing it
OUT
, and (-) terminal of C
AME5252-AVBxxx
1. VFB1
2. EN1
3. IN
4. SW1
5. GND
6. SYNC
Die Attach:
Conductive Epoxy
IN
enables regulator
7. SW2
8. PORB
9. EN2
10. VFB2
11. *PGND
IN
.
IN
IN
5