L5970D STMicroelectronics, L5970D Datasheet - Page 3

• Manufacturer Part Number: L5970D
• Description: IC REGULATOR SW STEPDWN 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L5970D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.2 ~ 35 V
• Current - Output: 1A
• Frequency - Switching: 250kHz
• Voltage - Input: 4.4 ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 750mW
• Output Voltage: 35 V
• Output Current: 1 A
• Input Voltage: 4.4 V to 36 V
• Switching Frequency: 212 KHz to 280 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• Low Dropout Operation: 100% duty cycle
• For Use With: 497-8849 - BOARD DEMO STW9N150 100W 3PHASE497-4132 - EVAL BOARD FOR L5970 SERIES
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-1415-5

L5970D
1
1.1
1.2
Pin settings
Pin connection
Figure 2.
Pin description
Table 1. Pin description
N°
1
2
3
4
5
6
7
8
Pin connection (top view)
COMP
SYNC
VREF
Type
GND
OUT
VCC
INH
FB
COMP
SYNC
OUT
INH
E/A output for frequency compensation.
Regulator output.
Master/slave synchronization.
A logical signal (active high) disables the device. If INH not used the pin
must be grounded. When it is open an internal pull-up disable the
device.
Feedback input. Connecting directly to this pin results in an output
voltage of 1.23V. An external resistive divider is required for higher
output voltages.
3.3V V
Ground.
Unregulated DC input voltage.
REF
1
2
3
4
. No cap is requested for stability.
D98IN955
8
7
6
5
Description
VCC
GND
VREF
FB
Pin settings
3/16