AN8014S Datasheet, PDF (1/18 Pages) Panasonic Semiconductor – Step-down, step-up, or inverting DC-DC converter control IC

Voltage regulators
AN8014S
Step-down, step-up, or inverting DC-DC converter control IC
s Overview
The AN8014S is a single-channel PWM DC-DC
converter control IC.
10.1±0.3
16
9
This IC can provide any one output type from
among step-down, step-up and inverting output.
Allowing n-channel power MOSFET direct driv-
ing, the AN8014S is ideal for high-efficiency power
supplies.
s Features
1
8
• Wide operating supply voltage range (3.6 V to 34 V)
(The voltage is limited within a range between 3.6
V and 17 V if it is connected to a step-down volt-
age circuit.)
• Totem pole output circuit: output peak current (±1 A)
(0.605)
1.27
Seating plane
0.40±0.25
• On-chip pulse-by-pulse overcurrent detection and
SOP016-P-0225A
protection circuit
Threshold voltage V_CC − 0.095 V typical
• On-chip bootstrap circuit (allowing n-channel MOSFET direct driving.)
• On-chip under-voltage lock-out circuit (U.V.L.O.)
• On-chip on/off function (active-high control input, standby current of maximum 5 µA)
• On-chip timer latch short-circuit protection circuit
• Maximum oscillator frequency (500 kHz)
Unit: mm
0.3
(0° to 10°)
Seating plane
s Applications
• DC-DC switching power supply
s Block Diagram
16
OFF
S.C.P. ⁵
V_REF
2.5V
On/off
active-high
R
Q
U.V.L.O.
S
Q
R
Latch Q
S
Constant
current
source
1 µA
10 µA
Triangular
wave OSC
Latch
RQS
10
CLM
PWM
comp.
Boot
strap
15
V_CC
14 _CB
13 _Out
S.C.P.
comp.
Error amp.
6 _IN+
7
IN−
1