MFG:STMicroelectronics Category:Integrated Circuits (ICs) Package Cooled:PowerSO-20 D/C:06+
L5956PD, L5970, L5970AD Datasheet download
Category: Integrated Circuits (ICs)
MFG: STMicroelectronics
Package Cooled: PowerSO-20
D/C: 06+
Description: IC REG SW 1.5A STEP DOWN 8-SOIC
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PDF/DataSheet Download
Datasheet: L5950
File Size: 136083 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: L5970
File Size: 141379 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: L5970AD
File Size: 138250 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
| Technical/Catalog Information | L5970AD |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 4.4 ~ 36 V |
| Voltage - Output | 1.24 ~ 35 V |
| Current - Output | 1.5A |
| Power - Output | 750mW |
| Package / Case | 8-SOIC (3.9mm Width) |
| Packaging | Tube |
| Internal Switch(s) | Yes |
| Synchronous | No |
| Rds (On) | 200 mOhm |
| Operating Temperature | -40°C ~ 150°C |
| Frequency - Switching | 500kHz |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | L5970AD L5970AD |
The L5970AD is a step down monolithic power witching regulator with a switch current limit of 1.5A o it is able to deliver more than 1A DC current to the load depending on the application conditions.
The output voltage can be set from 1.235V to 35V. The device uses an internal P-Channel D-MOS tran- sistor (with a typical RDSON of 200m) as switching
element to avoid the use of bootstrap capacitor and guarantee high efficiency.
An internal oscillator fixes the switching frequency at 500KHz to minimize the size of external components. Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus, available in all com- puter related applications.
Pulse by pulse current limit with the internal frequen- cy modulation offers an effective constant current short circuit protection.
|
Symbol |
Parameter |
Value |
Unit |
|
V8 |
Input Voltage |
40 |
V |
|
V1 |
Output DC voltage Output peak voltage at t = 0.1s |
-1 to 40 -5 to 40 |
V V |
|
I1 |
Maximum output current |
int. limit. |
|
|
V4,V5 |
Analog pins |
4 |
V |
|
V3 |
INH |
-0.3V to VCC |
|
|
V2 |
SYNC |
-0.3 to 4 |
V |
|
Ptot |
Power dissipation at Tamb 60 |
0.7 |
W |
|
Tj |
Operating junction temperature range |
-40 to 150 |
|
|
Tstg |
Storage temperature range |
-55 to 150 |
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