SP7651ER-L Exar Corporation, SP7651ER-L Datasheet - Page 10

• Manufacturer Part Number: SP7651ER-L
• Description: IC BUCK REG 900KHZ 26DFN
• Manufacturer: Exar Corporation
• Series: Power Blox™r
• Type: Step-Down (Buck)r

Specifications of SP7651ER-L

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 V ~ 19 V
• Current - Output: 3A
• Frequency - Switching: 900kHz
• Voltage - Input: 2.5 V ~ 20 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: 26-VFDFN Exposed Pad
• Primary Input Voltage: 20V
• No. Of Outputs: 1
• Output Voltage: 19V
• Output Current: 3A
• No. Of Pins: 26
• Operating Temperature Range: -40°C To +85°C
• Supply Voltage Range: 2.5V To 20V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Type III Error Amplifier Compensation Circuit
Rev J: 3/4/07
Bode Plot of Type III Error Amplifier Compensation.
V
OUT
20 Log (RZ2/R1)
Gain
(dB)
68.1k, 1%
R SET
R1
RZ3
SP765 Wide Input Voltage Range 3A, 900kHz, Buck Regulator
Condition:
C22 >> CP1, R1 >> RZ3
=54.48/ (V OUT -0.8) (kΩ)
R
CZ3
SET
0
VFB
5
+
- 0.8V
+
APPLICATIONS INFORMATION
-
Error Amplifier Gain
Bandwidth Product
CZ2
RZ2
CP1
© Copyright 2007 Sipex Corporation
COMP
Frequency
6
(Hz)
CF1