Information

8
Portable Power Conversion Design Guide
DC/DC Conversion
Step-Down (Buck) Switch Mode Power Converters
Device Output
Input
Voltage
Range (V)
Output
Voltage
Range (V)
Control
Scheme
Features Packages
MCP1603/B/L
Fixed or
Adjustable
2.7–5.5 0.8–4.5
PFM/PWM
or PWM
Only
2 MHz operation, UVLO, PFM/PWM
(MCP1603/L) or PWM only (MCP1603B)
mode, over-temperature protection, low
quiescent current, low shutdown current
5-pin TSOT, 8-pin
2 × 3 DFN
TC1303A/B/C
Fixed or
Adjustable
2.7–5.5 0.8–4.5 PFM/PWM
UVLO, over-temperature protection, output
short circuit protection, power good output,
independent shutdown, synchronous buck
and LDO combination device
10-pin DFN,
10-pin MSOP
TC1304
Fixed or
Adjustable
2.7–5.5 0.8–4.5 PFM/PWM
UVLO, over-temperature protection, output
short circuit protection, power-good output,
synchronous buck and LDO combination,
sequenced startup and shutdown
10-pin DFN,
10-pin MSOP
TC1313
Fixed or
Adjustable
2.7–5.5 0.8–4.5 PFM/PWM
UVLO, output short circuit protection,
over-temperature protection, independent
shutdown for buck and LDO outputs
10-pin DFN,
10-pin MSOP
MCP16301 Adjustable 4–30 2–15 PWM
Asynchronous, internal compensation,
UVLO, 500 kHz operation, low output ripple,
over-temperature protection, extended
temperature rating
6-pin SOT-23
MCP16301H Adjustable 4.7–36 2–15 PWM
Asynchronous, internal compensation,
UVLO, 500 kHz operation, low output ripple,
over-temperature protection, extended
temperature rating
6-pin SOT-23
MCP16311/2 Adjustable 4.4–30 2–24
PFM/PWM
or PWM
Only
Synchronous, internal compensation, UVLO,
500 kHz operation, low output ripple,
over-temperature protection, extended
temperature rating
8-pin MSOP, 8-pin
2 × 3 TDFN
MCP16321/2
Fixed or
Adjustable
6–24 0.9–5 PWM
1A or 2A, synchronous, internal
compensation, UVLO, 1 MHz operation, power
good output, over-temperature protection,
extended temperature rating
16-pin 3 × 3 QFN
MCP16323
Fixed or
Adjustable
6–18 0.9–5 PWM
3A, synchronous, internal compensation,
UVLO, 1 MHz operation, power good output,
over-temperature protection, extended
temperature rating
16-pin 3 × 3 QFN