LV5803M
TN8D41A/51A,, TN5D41A/51A/61ATN5D41A/51A/61A
■ Applications | unit: mm |
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■Functions/Features
●2A
●Wide input dynamic range (4.5 to 18V)
● High efficiency | : 90% IOUT=1A, VIN=12V, VO=5V |
●Compact package : MFP8
●Standby mode
●Overcurrent protection
●Thermal shutdown
● Fixed frequency : 330kHz
●Reference voltage : 0.8V
●Soft start function
| 5.0 |
8 | 5 |
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| 4.4 | 6.4 |
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| 0.63 |
| 1 | 4 |
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(0.65) | 1.27 | 0.35 | 0.15 |
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| (1.5) | 1.7max |
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| 0.1 |
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SANYO: MFP8(225mil)
■ Applications | unit: mm |
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| 10.0 |
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| 4.5 |
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| 3.2 | |||
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| 2.8 | |
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| 3.5 |
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| 7.2 |
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■ Functions/Features | 16.0 |
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● Large current : IO max 8A (TN8D41A/51A) |
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| 1.6 |
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| 2.4 | |
: IO max 5A (TN5D41A/51A/61A) | 14.0 | 12.5 |
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| 0.9 | (5.9) |
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● High efficiency : |
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| 0.5 |
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● High withstand voltage : VIN max 57V |
| 1 | 2 | 3 | 5 |
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● Five external parts |
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| 4 |
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| 1.27 |
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| 0.7 | |
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| 2.54 |
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| 3.81 | 2.75 |
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| 1.27 |
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| 2.54 |
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| SANYO: | |
● ON/OFF function (shared with soft start pin) |
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Type | Input voltage | Output voltage | Channels | Power stages | Package | |
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Step down | 4.5V to 18V | Programmable | 1ch | Built in | MFP8(225mil) | |
externally | ||||||
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Block Diagram
BOOT(SW+Vreg.)
Type |
| Input voltage | Output voltage | Channels | Power stages | Package | ||
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Step | 10V to 40V (TN8D41A/TN5D41A) | 5V/5A (TN5D41A), | 5V/8A (TN8D41A), |
| Built in |
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20V to 48V | (TN8D51A/TN5D51A) | 12V/5A (TN5D51A), | 12V/8A (TN8D51A), | 1ch | ||||
down | (PMOS) | |||||||
30V to 48V | (TN5D61A) | 24V/5A (TN5D61A) |
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Block Diagram
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| BOOT |
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| C2=10μF/25V | |
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| Current sense |
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| Amp |
| Rb=39 |
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| C1=0.022μF | ||
| UVLO |
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| 1:N | L1=10μH |
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R10=4.3kΩ |
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| SW |
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| OSC | Error Amp | PWM |
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R1=27kΩ | 330kHz | comparator |
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| C5=10μF/ | |||
| FB |
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| 10V X 3 | ||
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R3=10kΩ | COMP |
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| Short | GND |
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| BOOT | SW |
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| protect |
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R2=10kΩ |
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| circuit |
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C4=OPEN |
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VIN=12V
C8=10μF/25V
VOUT=3.3V
Ro=open
VIN |
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| SWOUT |
1 |
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VIN | Under Voltage | Over | VOUT |
| Temperature | Over Current | |
| Protect | Protect | |
| Protect | ||
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| SENSE |
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| Pch MOSFET |
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| OUTPUT |
+ |
| OSC | |
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SS 5 |
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| COMP |
SOFTSTART |
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| Band Gap |
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C3=1500pF |
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| Internal stable |
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| COMP | |||||||
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| SS | supply |
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| VIN |
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| Short |
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| protect |
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C6=0.015μF |
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| Vref |
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| TSD |
| Internal |
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| circuit |
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| regulator |
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| EN |
| 0.8V |
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| Internal regulator | |||||||||||||||||||||
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| (5V) | |||||||||||||
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open or H: ON |
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L:OFF |
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•C1, C8, C5 = Ceramic capacitor used.
•L1 =
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| AMP | |
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GND | FB | |
4 | ||
2 | ||
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GND | GND |
13 | 14 |