ADP2303ARDZ-R7 Analog Devices Inc, ADP2303ARDZ-R7 Datasheet - Page 13

• Manufacturer Part Number: ADP2303ARDZ-R7
• Description: IC REG SW STPDWN NONSYNCH 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Step-Down (Buck), PFM/PWM - Current Moder

Specifications of ADP2303ARDZ-R7

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 0.8V
• Current - Output: 3A
• Frequency - Switching: 700kHz
• Voltage - Input: 3 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Primary Input Voltage: 20V
• No. Of Outputs: 1
• Output Current: 3A
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 3 - 168 Hours
• Peak Reflow Compatible (260 C): Yes
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADP2303ARDZ-R7; ADP2303ARDZ-R7TR

FUNCTIONAL BLOCK DIAGRAM
OFF
PGOOD
ON
NC
EN
3
4
6
SHUTDOWN
THERMAL
1.20V
1.2µA
0.880V
0.680V
SHUTDOWN
g
OVP
m
LOGIC
V
THRESHOLD
BIAS
SHUTDOWN IC
CURRENT
0.8V VOLTAGE
REFERENCE
= 1.1V
V
LIMIT
IN
UVLO
Figure 44. Functional Block Diagram
GENERATOR
OCP
RAMP
2
7
VIN
GND
Rev. 0 | Page 13 of 28
SENSE AMPLIFIER
CURRENT
(⅛
FREQUENCY FOLDBACK
f
SW
, ¼
GENERATOR
f
REGULATOR
SW
CLK
, ½
BOOT
ADP2302/ADP2303
f
SW
R
S
,
Q
f
SW
)
1
8
5
BST
SW
FB
ADP2302/ADP2303
V
OUT